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  1994 RESULTS

 Common Name  Scientific Name  Feather Type  Age  Sex  Notes
  Acorn Woodpecker   Melanerpes formicivorus   Tail   Adult   Female  
  Acorn Woodpecker   Melanerpes formicivorus   Primaries   Adult   Female  
  Acorn Woodpecker   Melanerpes formicivorus   Secondaries   Adult   Female  
  Allens Hummingbird   Selasphorus sasin   Tail   Adult   Male   Black background
  Allens Hummingbird   Selasphorus sasin   Tail   Adult   Male   Blue background
  Allens Hummingbird   Selasphorus sasin   Primaries   Adult   Male  
  Allens Hummingbird   Selasphorus sasin   Secondaries   Adult   Male   Black background
  Allens Hummingbird   Selasphorus sasin   Secondaries   Adult   Male   Blue background
  Amer. Three-toed Woodpecker   Picoides dorsalis   Primaries   Adult   Male  
  Amer. Three-toed Woodpecker   Picoides dorsalis   Secondaries   Adult   Male  
  Amer. Three-toed Woodpecker   Picoides dorsalis   Tail   Adult   Male  
  American Avocet   Recurvirostra americana   Primaries   Adult   Female  
  American Avocet   Recurvirostra americana   Tail   Adult   Female  
  American Avocet   Recurvirostra americana   Secondaries   Adult   Female   Black background
  American Avocet   Recurvirostra americana   Secondaries   Adult   Female   Blue background
  American Bittern   Botaurus lentiginosus   Tail   Adult   Male  
  American Bittern   Botaurus lentiginosus   Wing   Adult   Male  
  American Black Duck   Anas rubripes   Primaries   Adult   Male  
  American Black Duck   Anas rubripes   Secondaries   Adult   Male  
  American Black Duck   Anas rubripes   Tail   Adult   Male  
  American Black Duck   Anas rubripes   Secondaries   Adult   Female  
  American Buff Goose   Anser anser domesticus   Tail   Adult   Female  
  American Buff Goose   Anser anser domesticus   Primaries   Adult   Female  
  American Buff Goose   Anser anser domesticus   Secondaries   Adult   Female  
  American Coot   Fulica americana   Primaries   Adult   Male  
  American Coot   Fulica americana   Tail   Adult   Male   Black background
  American Coot   Fulica americana   Tail   Adult   Male   Ventral view
  American Coot   Fulica americana   Tail   Adult   Male   Blue background
  American Coot   Fulica americana   Secondaries   Adult   Male  
  American Crow   Corvus brachyrhynchos   Tail   Adult   Male  
  American Crow   Corvus brachyrhynchos   Primaries   Adult   Male  
  American Crow   Corvus brachyrhynchos   Secondaries   Adult   Male  
  American Flamingo   Phoenicopterus ruber   Tail   Adult   Female  
  American Flamingo   Phoenicopterus ruber   Primaries   Adult   Female  
  American Flamingo   Phoenicopterus ruber   Secondaries   Adult   Female  
  American Goldfinch   Spinus tristis   Tail   Adult   Male   Black background
  American Goldfinch   Spinus tristis   Tail   Adult   Male   Blue background
  American Goldfinch   Spinus tristis   Primaries   Adult   Male  
  American Goldfinch   Spinus tristis   Secondaries   Adult   Male  
  American Kestrel   Falco sparverius   Primaries   Adult   Male   Black background
  American Kestrel   Falco sparverius   Primaries   Adult   Male   Blue background
  American Kestrel   Falco sparverius   Secondaries   Adult   Male  
  American Kestrel   Falco sparverius   Primaries   Unkown   Female  
  American Kestrel   Falco sparverius   Secondaries   Unknown   Female  
  American Kestrel   Falco sparverius   Tail   Unknown   Female  
  American Kestrel   Falco sparverius   Tail   Adult   Male  
  American Oystercatcher   Haematopus palliatus   Tail   Juvenile   Female   Black background
  American Oystercatcher   Haematopus palliatus   Tail   Juvenile   Female   Blue background
  American Oystercatcher   Haematopus palliatus   Primaries   Juvenile   Female  
  American Oystercatcher   Haematopus palliatus   Secondaries   Juvenile   Female   Black background
  American Oystercatcher   Haematopus palliatus   Secondaries   Juvenile   Female   Blue background
  American Pipit   Anthus rubescens   Tail   Adult   Unknown  
  American Pipit   Anthus rubescens   Primaries   Adult   Unknown  
  American Pipit   Anthus rubescens   Secondaries   Adult   Unknown  
  American Redstart   Setophaga ruticilla   Tail   Adult   Female  
  American Redstart   Setophaga ruticilla   Primaries   Adult   Female  
  American Redstart   Setophaga ruticilla   Tail   Adult   Female  
  American Redstart   Setophaga ruticilla   Secondaries   Adult   Female  
  American Redstart   Setophaga ruticilla   Tail   Adult   Male   Black background
  American Redstart   Setophaga ruticilla   Tail   Adult   Male   Blue background
  American Redstart   Setophaga ruticilla   Primaries   Adult   Male   Black background
  American Redstart   Setophaga ruticilla   Primaries   Adult   Male   Blue background
  American Redstart   Setophaga ruticilla   Secondaries   Adult   Male   Black background
  American Redstart   Setophaga ruticilla   Secondaries   Adult   Male   Blue background
  American Robin   Turdus migratorius   Tail   Adult   Male  
  American Robin   Turdus migratorius   Primaries   Adult   Male  
  American Robin   Turdus migratorius   Secondaries   Adult   Male  
  American Tree Sparrow   Spizelloides arborea   Tail   Adult   Unknown  
  American Tree Sparrow   Spizelloides arborea   Primaries   Adult   Unknown  
  American Tree Sparrow   Spizelloides arborea   Secondaries   Adult   Unknown  
  American White Pelican   Pelecanus erythrorhynchos   Primaries   Juvenile   Male  
  American White Pelican   Pelecanus erythrorhynchos   Secondaries   Juvenile   Male  
  American White Pelican   Pelecanus erythrorhynchos   Tail   Juvenile   Male  
  American Wigeon   Mareca americana   Primaries   Adult   Male  
  American Wigeon   Mareca americana   Secondaries   Adult   Male  
  American Wigeon   Mareca americana   Tail   Adult   Male  
  American Wigeon   Mareca americana   Tail   Juvenile   Female  
  American Wigeon   Mareca americana   Primaries   Juvenile   Female  
  American Wigeon   Mareca americana   Secondaries   Juvenile   Female  
  American Wigeon   Mareca americana   Primaries   Juvenile   Female   Ventral view--note tegman (see glossary)
  American Woodcock   Scolopax minor   Tail   Adult   Female  
  American Woodcock   Scolopax minor   Tail   Adult   Female   Ventral view
  American Woodcock   Scolopax minor   Primaries   Adult   Female  
  American Woodcock   Scolopax minor   Secondaries   Adult   Female  
  American Woodcock   Scolopax minor   Tail   Adult   Male  
  American Woodcock   Scolopax minor   Tail   Adult   Male   Ventral view
  American Woodcock   Scolopax minor   Primaries   Adult   Male  
  American Woodcock   Scolopax minor   Secondaries   Adult   Male  
  Ancient Murrelet   Synthliboramphus antiquus   Tail   Adult   Female  
  Ancient Murrelet   Synthliboramphus antiquus   Primaries   Adult   Female  
  Ancient Murrelet   Synthliboramphus antiquus   Secondaries   Adult   Female   Black background
  Ancient Murrelet   Synthliboramphus antiquus   Secondaries   Adult   Female   Blue background
  Anhinga   Anhinga anhinga   Tail   Adult   Female  
  Anhinga   Anhinga anhinga   Primaries   Adult   Female  
  Anhinga   Anhinga anhinga   Secondaries   Adult   Female  
  Annas Hummingbird   Calypte anna   Tail   Juvenile   Female  
  Annas Hummingbird   Calypte anna   Primaries   Juvenile   Female  
  Annas Hummingbird   Calypte anna   Secondaries   Juvenile   Female  
  Annas Hummingbird   Calypte anna   Tail   Adult   Male  
  Annas Hummingbird   Calypte anna   Primaries   Adult   Male  
  Annas Hummingbird   Calypte anna   Secondaries   Adult   Male  
  Arctic Tern   Sterna paradisea   Tail   Adult   Male   Black background
  Arctic Tern   Sterna paradisea   Tail   Adult   Male   Blue background
  Arctic Tern   Sterna paradisea   Primaries   Adult   Male   Black background
  Arctic Tern   Sterna paradisea   Primaries   Adult   Male   Blue background
  Arctic Tern   Sterna paradisea   Secondaries   Adult   Male  
  Ash-Throated Flycatcher   Myiarchus cinerascens   Tail   Adult   Unknown  
  Ash-Throated Flycatcher   Myiarchus cinerascens   Primaries   Adult   Unknown  
  Ash-Throated Flycatcher   Myiarchus cinerascens   Secondaries   Adult   Unknown  
  Atlantic Puffin   Fratercula artica   Tail   Adult   Unknown  
  Atlantic Puffin   Fratercula artica   Primaries   Adult   Unknown  
  Atlantic Puffin   Fratercula artica   Secondaries   Adult   Unknown  
  Attwaters Prairie Chicken   Tympanuchus cupido   Tail   Adult   Male   Subspecies attwateri
  Attwaters Prairie Chicken   Tympanuchus cupido   Primaries   Adult   Male   Subspecies attwateri
  Attwaters Prairie Chicken   Tympanuchus cupido   Secondaries   Adult   Male   Subspecies attwateri
  Bald Eagle   Haliaeetus leucocephalus   Other   Subadult III   Female  
  Bald Eagle   Haliaeetus leucocephalus   Other   Subadult III   Female  
  Bald Eagle   Haliaeetus leucocephalus   Tail   Adult   Unknown   Black background
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   Adult   Unknown   Black background
  Bald Eagle   Haliaeetus leucocephalus   Tail   Subadult II   Female  
  Bald Eagle   Haliaeetus leucocephalus   Tail   Subadult III   Female  
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Adult   Unknown   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Adult   Unknown   Black background
  Bald Eagle   Haliaeetus leucocephalus   Tail   Adult   Unknown   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   Third year   Female   Black background
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   Third year   Female   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Primaries   First year   Female   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Primaries   First year   Female   Black background
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   First year   Female   Blue Background
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   First year   Female   Black background
  Bald Eagle   Haliaeetus leucocephalus   Tail   Second year   Unknown   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Tail   Second year   Unknown   Black background
  Bald Eagle   Haliaeetus leucocephalus   Tail   Fourth year   Unknown   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Tail   Fourth year   Unknown   Black background
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   Adult   Unknown   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Third year   Female   Black background
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Third year   Female   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Subadult   Unknown   Compare Primary 7 pattern to adult Golden Eagle
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Subadult   Unknown   Compare Primary 7 pattern to adult Golden Eagle
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   Subadult   Unknown   Compare Primay 7 pattern to adult Golden Eagle
  Bald Eagle   Haliaeetus leucocephalus   Secondaries   Subadult   Unknown   Compare Primary 7 pattern to adult Golden Eagle
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Adult   Unknown   Blue background
  Bald Eagle   Haliaeetus leucocephalus   Primaries   Adult   Unknown   Black background
  Baltimore Oriole   Icterus galbula   Tail   Juvenile   Male  
  Baltimore Oriole   Icterus galbula   Primaries   Juvenile   Male  
  Baltimore Oriole   Icterus galbula   Secondaries   Juvenile   Male  
  Baltimore Oriole   Icterus galbula   Tail   Adult   Male  
  Baltimore Oriole   Icterus galbula   Primaries   Adult   Male  
  Baltimore Oriole   Icterus galbula   Secondaries   Adult   Male  
  Band-tailed Pigeon   Patagioenas fasciata   Tail   Adult   Female  
  Band-tailed Pigeon   Patagioenas fasciata   Wing   Adult   Female  
  Bank Swallow   Riparia riparia   Tail   Juvenile   Female  
  Bank Swallow   Riparia riparia   Primaries   Juvenile   Female  
  Bank Swallow   Riparia riparia   Secondaries   Juvenile   Female  
  Barn Owl   Tyto alba   Tail   Adult   Male   Paler individual
  Barn Owl   Tyto alba   Primaries   Adult   Male   Paler individual
  Barn Owl   Tyto alba   Secondaries   Adult   Male   Paler individual
  Barn Owl   Tyto alba   Tail   Adult   Female   Darker individual
  Barn Owl   Tyto alba   Primaries   Adult   Female   Darker individual
  Barn Owl   Tyto alba   Secondaries   Adult   Female   Darker individual
  Barn Owl   Tyto alba   Tail   Adult   Female  
  Barn Owl   Tyto alba   Primaries   Adult   Female  
  Barn Owl   Tyto alba   Secondaries   Adult   Female  
  Barn Swallow   Hirundo rustica   Tail   Adult   Male   Black background
  Barn Swallow   Hirundo rustica   Tail   Adult   Male   Blue background
  Barn Swallow   Hirundo rustica   Primaries   Adult   Male  
  Barn Swallow   Hirundo rustica   Secondaries   Adult   Male  
  Barred Owl   Strix varia   Tail   Adult   Female  
  Barred Owl   Strix varia   Primaries   Adult   Female  
  Barred Owl   Strix varia   Secondaries   Adult   Female  
  Barrows Goldeneye   Bucephala islandica   Primaries   Adult   Male  
  Barrows Goldeneye   Bucephala islandica   Secondaries   Adult   Male  
  Barrows Goldeneye   Bucephala islandica   Tail   Adult   Male  
  Bay-breasted Warbler   Setophaga castancea   Tail   Adult   Male  
  Bay-breasted Warbler   Setophaga castancea   Primaries   Adult   Male  
  Bay-breasted Warbler   Setophaga castancea   Secondaries   Adult   Male  
  Belted Kingfisher   Megaceryle alcyon   Primaries   Juvenile   Female  
  Belted Kingfisher   Megaceryle alcyon   Secondaries   Juvenile   Female  
  Belted Kingfisher   Megaceryle alcyon   Tail   Juvenile   Female  
  Bewicks Wren   Thryomanes bewickii   Tail   Adult   Female   Black background
  Bewicks Wren   Thryomanes bewickii   Tail   Adult   Female   Blue background
  Bewicks Wren   Thryomanes bewickii   Primaries   Adult   Female   Black background
  Bewicks Wren   Thryomanes bewickii   Primaries   Adult   Female   Blue background
  Bewicks Wren   Thryomanes bewickii   Secondaries   Adult   Female   Black background
  Bewicks Wren   Thryomanes bewickii   Secondaries   Adult   Female   Blue background
  Black Phoebe   Sayornis nigricans   Primaries   Juvenile   Female  
  Black Phoebe   Sayornis nigricans   Tail   Juvenile   Female  
  Black Phoebe   Sayornis nigricans   Secondaries   Juvenile   Female  
  Black Scoter   Melanitta americana   Primaries   Adult   Male   Black background
  Black Scoter   Melanitta americana   Primaries   Adult   Male   Blue background
  Black Scoter   Melanitta americana   Secondaries   Adult   Male   Black background
  Black Scoter   Melanitta americana   Secondaries   Adult   Male   Blue background
  Black Scoter   Melanitta americana   Tail   Adult   Male   Black background
  Black Scoter   Melanitta americana   Tail   Adult   Male   Blue background
  Black Tern   Chlidonias niger   Tail   Juvenile   Unknown   Black background
  Black Tern   Chlidonias niger   Tail   Juvenile   Unknown   Blue background
  Black Tern   Chlidonias niger   Primaries   Juvenile   Unknown   Black background
  Black Tern   Chlidonias niger   Primaries   Juvenile   Unknown   Blue background
  Black Tern   Chlidonias niger   Secondaries   Juvenile   Unknown   Black background
  Black Tern   Chlidonias niger   Secondaries   Juvenile   Unknown   Blue background
  Black Vulture   Coragyps atratus   Primaries   Adult   Female  
  Black Vulture   Coragyps atratus   Primaries   Adult   Female   Ventral view
  Black Vulture   Coragyps atratus   Secondaries   Adult   Female  
  Black Vulture   Coragyps atratus   Secondaries   Adult   Female   Ventral view
  Black Vulture   Coragyps atratus   Tail   Adult   Female  
  Black-and-white Warbler   Mniotilta varia   Tail   Adult   Male  
  Black-and-white Warbler   Mniotilta varia   Primaries   Adult   Male  
  Black-and-white Warbler   Mniotilta varia   Secondaries   Adult   Male  
  Black-bellied Plover   Pluvialis squatarola   Tail   Adult   Male   Non-breeding plumage--black background
  Black-bellied Plover   Pluvialis squatarola   Tail   Adult   Male   Non-breeding plumage--blue background
  Black-bellied Plover   Pluvialis squatarola   Primaries   Adult   Male   Non-breeding plumage
  Black-bellied Plover   Pluvialis squatarola   Secondaries   Adult   Male   Non-breeding plumage--black background
  Black-bellied Plover   Pluvialis squatarola   Secondaries   Adult   Male   Non-breeding plumage--blue background
  Black-bellied Whistling-Duck   Dendrocygna autumnalis   Tail   Adult   Male   Black Background
  Black-bellied Whistling-Duck   Dendrocygna autumnalis   Tail   Adult   Male   Blue Background
  Black-bellied Whistling-Duck   Dendrocygna autumnalis   Wing   Adult   Female  
  Black-billed Cuckoo   Coccyzus erythropthalmus   Tail   Adult   Unknown  
  Black-billed Cuckoo   Coccyzus erythropthalmus   Wing   Adult   Unknown  
  Black-billed Magpie   Pica hudsonia   Primaries   Adult   Unknown  
  Black-billed Magpie   Pica hudsonia   Secondaries   Adult   Unknown  
  Black-billed Magpie   Pica hudsonia   Tail   Adult   Unknown  
  Black-capped Chickadee   Poecile atricapilla   Tail   Adult   Unknown  
  Black-capped Chickadee   Poecile atricapilla   Primaries   Adult   Unknown  
  Black-capped Chickadee   Poecile atricapilla   Secondaries   Adult   Unknown  
  Black-crowned Night-Heron   Nycticorax nycticorax   Tail   Juvenile   Male  
  Black-crowned Night-Heron   Nycticorax nycticorax   Primaries   Juvenile   Male  
  Black-crowned Night-Heron   Nycticorax nycticorax   Secondaries   Juvenile   Male  
  Black-crowned Night-Heron   Nycticorax nycticorax   Tail   Adult   Male  
  Black-crowned Night-Heron   Nycticorax nycticorax   Wing   Adult   Male  
  Black-footed Albatross   Phoebastria nigripes   Primaries   Juvenile   Female   Primaries molting in
  Black-footed Albatross   Phoebastria nigripes   Tail   Juvenile   Female  
  Black-footed Albatross   Phoebastria nigripes   Secondaries   Juvenile   Female  
  Black-headed Grosbeak   Pheucticus melanocephalus   Tail   Juvenile   Male  
  Black-headed Grosbeak   Pheucticus melanocephalus   Primaries   Juvenile   Male  
  Black-headed Grosbeak   Pheucticus melanocephalus   Secondaries   Juvenile   Male  
  Black-headed Grosbeak   Pheucticus melanocephalus   Tail   Juvenile   Female  
  Black-headed Grosbeak   Pheucticus melanocephalus   Primaries   Juvenile   Female  
  Black-headed Grosbeak   Pheucticus melanocephalus   Secondaries   Juvenile   Female  
  Black-headed Grosbeak   Pheucticus melanocephalus   Tail   Adult   Male   Black background
  Black-headed Grosbeak   Pheucticus melanocephalus   Secondaries   Adult   Male   Blue background
  Black-headed Grosbeak   Pheucticus melanocephalus   Primaries   Adult   Male   Black background
  Black-headed Grosbeak   Pheucticus melanocephalus   Primaries   Adult   Male   Blue background
  Black-headed Grosbeak   Pheucticus melanocephalus   Tail   Adult   Male   Blue background
  Black-headed Grosbeak   Pheucticus melanocephalus   Secondaries   Adult   Male   Black background
  Black-legged Kittiwake   Rissa tridactyla   Tail   Adult   Male  
  Black-legged Kittiwake   Rissa tridactyla   Primaries   Adult   Male  
  Black-legged Kittiwake   Rissa tridactyla   Secondaries   Adult   Male  
  Black-legged Kittiwake   Rissa tridactyla   Tail   Juvenile   Unknown  
  Black-legged Kittiwake   Rissa tridactyla   Primaries   Juvenile   Unknown  
  Black-legged Kittiwake   Rissa tridactyla   Secondaries   Juvenile   Unknown  
  Black-necked Stilt   Himantopus mexicanus   Tail   Adult   Male  
  Black-necked Stilt   Himantopus mexicanus   Primaries   Adult   Male  
  Black-necked Stilt   Himantopus mexicanus   Secondaries   Adult   Male  
  Black-throated Blue Warbler   Setophaga caerulescens   Tail   Juvenile   Male  
  Black-throated Blue Warbler   Setophaga caerulescens   Primaries   Juvenile   Male  
  Black-throated Blue Warbler   Setophaga caerulescens   Secondaries   Juvenile   Male  
  Black-throated Blue Warbler   Setophaga caerulescens   Tail   Juvenile   Female  
  Black-throated Blue Warbler   Setophaga caerulescens   Primaries   Juvenile   Female   Black background
  Black-throated Blue Warbler   Setophaga caerulescens   Primaries   Juvenile   Female   Blue background
  Black-throated Blue Warbler   Setophaga caerulescens   Secondaries   Juvenile   Female  
  Black-throated Green Warbler   Setophaga virens   Tail   Adult   Male   Black background
  Black-throated Green Warbler   Setophaga virens   Tail   Adult   Male   Blue background
  Black-throated Green Warbler   Setophaga virens   Primaries   Adult   Male  
  Black-throated Green Warbler   Setophaga virens   Secondaries   Adult   Male  
  Black-throated Sparrow   Amphispiza bilineata   Tail   Juvenile   Unknown  
  Black-throated Sparrow   Amphispiza bilineata   Primaries   Juvenile   Unknown  
  Black-throated Sparrow   Amphispiza bilineata   Secondaries   Juvenile   Unknown  
  Blackburnian Warbler   Setophaga fusca   Tail   Juvenile   Male  
  Blackburnian Warbler   Setophaga fusca   Primaries   Juvenile   Male   Black background
  Blackburnian Warbler   Setophaga fusca   Primaries   Juvenile   Male   Blue background
  Blackburnian Warbler   Setophaga fusca   Secondaries   Juvenile   Male  
  Blackpoll Warbler   Setophaga striata   Tail   Juvenile   Unknown   Nonbreeding plumage--black background
  Blackpoll Warbler   Setophaga striata   Tail   Juvenile   Unknown   Nonbreeding plumage--blue background
  Blackpoll Warbler   Setophaga striata   Primaries   Juvenile   Unknown   Nonbreeding plumage
  Blackpoll Warbler   Setophaga striata   Secondaries   Juvenile   Unknown   Nonbreeding plumage--black background
  Blackpoll Warbler   Setophaga striata   Secondaries   Juvenile   Unknown   Nonbreeding plumage--blue background
  Blue Grosbeak   Passerina caerulea   Primaries   Adult   Male  
  Blue Grosbeak   Passerina caerulea   Tail   Adult   Male  
  Blue Grosbeak   Passerina caerulea   Secondaries   Adult   Male  
  Blue Jay   Cyanocitta cristata   Tail   Adult   Male  
  Blue Jay   Cyanocitta cristata   Primaries   Adult   Male  
  Blue Jay   Cyanocitta cristata   Secondaries   Adult   Male  
  Blue-gray Gnatcatcher   Polioptila caerulea   Tail   Unknown   Female  
  Blue-gray Gnatcatcher   Polioptila caerulea   Primaries   Unknown   Female  
  Blue-gray Gnatcatcher   Polioptila caerulea   Secondaries   Unknown   Female  
  Blue-winged Teal   Spatula discors   Primaries   Adult   Female  
  Blue-winged Teal   Spatula discors   Secondaries   Adult   Female  
  Blue-winged Teal   Spatula discors   Tail   Adult   Female  
  Blue-winged Teal   Spatula discors   Other   Adult   Male  
  Blue-winged Teal   Spatula discors   Tail   Adult   Male  
  Blue-winged Teal   Spatula discors   Primaries   Adult   Male   Black background
  Blue-winged Teal   Spatula discors   Primaries   Adult   Male   Blue background
  Blue-winged Teal   Spatula discors   Secondaries   Adult   Male   Black background
  Blue-winged Teal   Spatula discors   Secondaries   Adult   Male   Blue background
  Boat-tailed Grackle   Quiscalus major   Tail   Adult   Male  
  Boat-tailed Grackle   Quiscalus major   Primaries   Adult   Male  
  Boat-tailed Grackle   Quiscalus major   Secondaries   Adult   Male  
  Bobolink   Dolichonyx oryzivorus   Tail   Adult   Male   Breeding plumage
  Bobolink   Dolichonyx oryzivorus   Primaries   Adult   Male   Breeding plumage
  Bobolink   Dolichonyx oryzivorus   Secondaries   Adult   Male   Breeding plumage
  Bohemian Waxwing   Bombycilla garrulus   Tail   Adult   Male  
  Bohemian Waxwing   Bombycilla garrulus   Primaries   Adult   Male  
  Bohemian Waxwing   Bombycilla garrulus   Secondaries   Adult   Male  
  Bonapartes Gull   Chroicocephalus philadelphia   Tail   Adult   Female  
  Bonapartes Gull   Chroicocephalus philadelphia   Primaries   Adult   Female  
  Bonapartes Gull   Chroicocephalus philadelphia   Secondaries   Adult   Female  
  Boreal Owl   Aegolius funereus   Primaries   Adult   Unknown  
  Boreal Owl   Aegolius funereus   Secondaries   Adult   Unknown  
  Boreal Owl   Aegolius funereus   Tail   Adult   Unknown  
  Brandts Cormorant   Phalacrocorax pencillatus   Tail   Adult   Male   Black background
  Brandts Cormorant   Phalacrocorax pencillatus   Tail   Adult   Male   Blue background
  Brandts Cormorant   Phalacrocorax pencillatus   Primaries   Adult   Male   Black background
  Brandts Cormorant   Phalacrocorax pencillatus   Primaries   Adult   Male   Blue background
  Brandts Cormorant   Phalacrocorax pencillatus   Secondaries   Adult   Male   Black background
  Brandts Cormorant   Phalacrocorax pencillatus   Secondaries   Adult   Male   Blue background
  Brant   Branta bernicla   Tail   Adult   Female   Subsp. nigricans (Blue background)
  Brant   Branta bernicla   Tail   Adult   Female   Subsp. nigricans (black background)
  Brant   Branta bernicla   Tail   Juvenile   Male   Subsp. nigricans (Blue background)
  Brant   Branta bernicla   Tail   Juvenile   Male   Subsp. nigricans (Black background)
  Brant   Branta bernicla   Primaries   Juvenile   Male   Subsp. nigricans
  Brant   Branta bernicla   Secondaries   Juvenile   Male   Subsp. nigricans
  Bristle-thighed Curlew   Numenius tahitiensis   Tail   Adult   Unknown  
  Bristle-thighed Curlew   Numenius tahitiensis   Primaries   Adult   Unknown  
  Bristle-thighed Curlew   Numenius tahitiensis   Secondaries   Adult   Unknown  
  Broad-winged Hawk   Buteo platypterus   Primaries   Juvenile   Male   Black background
  Broad-winged Hawk   Buteo platypterus   Primaries   Juvenile   Male   Blue background
  Broad-winged Hawk   Buteo platypterus   Secondaries   Juvenile   Male   Black background
  Broad-winged Hawk   Buteo platypterus   Secondaries   Juvenile   Male   Blue background
  Broad-winged Hawk   Buteo platypterus   Tail   Adult   Unknown  
  Broad-winged Hawk   Buteo platypterus   Tail   Juvenile   Male  
  Brown Booby   Sula leucogaster   Tail   Adult   Female   Black background
  Brown Booby   Sula leucogaster   Tail   Adult   Female   Blue background
  Brown Booby   Sula leucogaster   Primaries   Adult   Female   Black background
  Brown Booby   Sula leucogaster   Primaries   Adult   Female   Blue background
  Brown Booby   Sula leucogaster   Secondaries   Adult   Female   Black background
  Brown Booby   Sula leucogaster   Secondaries   Adult   Female   Blue background
  Brown Creeper   Certhia americana   Tail   Juvenile   Unknown  
  Brown Creeper   Certhia americana   Primaries   Juvenile   Unknown  
  Brown Creeper   Certhia americana   Secondaries   Juvenile   Unknown  
  Brown Noddy   Anous stolidus   Tail   Adult   Unknown  
  Brown Noddy   Anous stolidus   Primaries   Adult   Unknown  
  Brown Noddy   Anous stolidus   Secondaries   Audlt   Unknown  
  Brown Pelican   Pelecanus occidentalis   Primaries   Adult   Unknown  
  Brown Pelican   Pelecanus occidentalis   Secondaries   Adult   Unknown  
  Brown Pelican   Pelecanus occidentalis   Tail   Adult   Unknown  
  Brown Thrasher   Toxostoma rufum   Tail   Adult   Female  
  Brown Thrasher   Toxostoma rufum   Primaries   Adult   Female  
  Brown Thrasher   Toxostoma rufum   Secondaries   Adult   Female  
  Brown-headed Cowbird   Molothrus ater   Tail   Adult   Female  
  Brown-headed Cowbird   Molothrus ater   Primaries   Adult   Female  
  Brown-headed Cowbird   Molothrus ater   Secondaries   Adult   Female  
  Bufflehead   Bucephala albeola   Primaries   Adult   Male  
  Bufflehead   Bucephala albeola   Secondaries   Adult   Male  
  Bufflehead   Bucephala albeola   Tail   Adult   Male  
  Bullocks Oriole   Icterus bullockii   Tail   Juvenile   Male  
  Bullocks Oriole   Icterus bullockii   Primaries   Juvenile   Male  
  Bullocks Oriole   Icterus bullockii   Secondaries   Juvenile   Male  
  Bullocks Oriole   Icterus bullockii   Tail   Adult   Male  
  Bullocks Oriole   Icterus bullockii   Primaries   Adult   Male  
  Bullocks Oriole   Icterus bullockii   Secondaries   Adult   Male  
  Burrowing Owl   Athene cunicularia   Tail   Adult   Male  
  Burrowing Owl   Athene cunicularia   Primaries   Adult   Male  
  Burrowing Owl   Athene cunicularia   Secondaries   Adult   Male  
  Bushtit   Psaltriparus minimus   Tail   Unknown   Female   Black background
  Bushtit   Psaltriparus minimus   Tail   Unknown   Female   Blue background
  Bushtit   Psaltriparus minimus   Primaries   Unknown   Female   Black background
  Bushtit   Psaltriparus minimus   Primaries   Unknown   Female   Blue background
  Bushtit   Psaltriparus minimus   Secondaries   Unknown   Female  
  Cackling Goose   Branta hutchinsii   Primaries   Adult   Female  
  Cackling Goose   Branta hutchinsii   Secondaries   Adult   Female   Black background
  Cackling Goose   Branta hutchinsii   Secondaries   Adult   Female   Blue background
  Cackling Goose   Branta hutchinsii   Tail   Adult   Female   black background
  Cackling Goose   Branta hutchinsii   Tail   Adult   Female   blue background
  Cactus Wren   Campylorhynchus brunneicapillus   Tail   Adult   Unknown  
  Cactus Wren   Campylorhynchus brunneicapillus   Primaries   Adult   Unknown  
  Cactus Wren   Campylorhynchus brunneicapillus   Secondaries   Adult   Unknown  
  California Condor   Gymnogyps californianus   Primaries   Adult   Male   length of flattened feathers--black background
  California Condor   Gymnogyps californianus   Primaries   Adult   Male   length of flattened feathers--blue background
  California Condor   Gymnogyps californianus   Secondaries   Adult   Male   Black background
  California Condor   Gymnogyps californianus   Secondaries   Adult   Male   Blue background
  California Condor   Gymnogyps californianus   Secondaries   Adult   Male   Black background
  California Condor   Gymnogyps californianus   Secondaries   Adult   Male   Blue background
  California Condor   Gymnogyps californianus   Tail   Adult   Male   Black background
  California Condor   Gymnogyps californianus   Tail   Adult   Male   Blue background
  California gull   Larus californicus   Tail   Juvenile   Male   First summer
  California Gull   Larus californicus   Primaries   Juvenile   Male   First summer
  California gull   Larus californicus   Secondaries   Juvenile   Male   First summer
  California Gull   Larus californicus   Tail   Adult   Male  
  California Gull   Larus californicus   Primaries   Adult   Male   Black background
  California Gull   Larus californicus   Primaries   Adult   Male   Blue background
  California Gull   Larus californicus   Secondaries   Adult   Male  
  California Quail   Callipepla californica   Tail   Adult   Male  
  California Quail   Callipepla californica   Wing   Adult   Male  
  California Scrub-Jay   Aphelocoma californica   Primaries   Adult   Female  
  California Scrub-Jay   Aphelocoma californica   Tail   Adult   Female  
  California Scrub-Jay   Aphelocoma californica   Secondaries   Adult   Female  
  California Towhee   Melozone crissalis   Tail   Adult   Unknown   Black background
  California Towhee   Melozone crissalis   Tail   Adult   Unknown   Blue background
  California Towhee   Melozone crissalis   Primaries   Adult   Unknown   Black background
  California Towhee   Melozone crissalis   Primaries   Adult   Unknown   Blue background
  California Towhee   Melozone crissalis   Secondaries   Adult   Unknown   Black background
  California Towhee   Melozone crissalis   Secondaries   Adult   Unknown   Blue background
  Calliope Hummingbird   Selasphorus calliope   Tail   Juvenile   Male  
  Calliope Hummingbird   Selasphorus calliope   Primaries   Juvenile   Male  
  Calliope Hummingbird   Selasphorus calliope   Secondaries   Juvenile   Male  
  Canada Goose   Branta canadensis   Primaries   Adult   Unknown   Subsp. occidentalis
  Canada Goose   Branta canadensis   Secondaries   Audlt   Unknown   Subsp. occidentalis (black background)
  Canada Goose   Branta canadensis   Secondaries   Adult   Unknown   Subsp. occidentalis (blue background)
  Canada Goose   Branta canadensis   Tail   Adult   Unknown   Subsp. occidentalis (black background)
  Canada Goose   Branta canadensis   Tail   Adult   Unknown   Subsp. occidentalis (blue background)
  Canada Goose   Branta canadensis   Wing   Adult   Unknown   Subsp. occidentalis (blue background)
  Canada Jay   Perisoreus canadensis   Tail   Juvenile   Unknown  
  Canada Jay   Perisoreus canadensis   Secondaries   Juvenile   Unknown  
  Canada Jay   Perisoreus canadensis   Primaries   Juvenile   Unknown  
  Canada Warbler   Cardinella canadensis   Tail   Adult   Female  
  Canada Warbler   Cardinella canadensis   Primaries   Adult   Female  
  Canada Warbler   Cardinella canadensis   Secondaries   Adult   Female  
  Canvasback   Aythya valisineria   Primaries   Adult   Female  
  Canvasback   Aythya valisineria   Secondaries   Adult   Female  
  Canvasback   Aythya valisineria   Tail   Adult   Female  
  Canvasback   Aythya valisineria   Tail   Adult   Male  
  Canvasback   Aythya valisineria   Primaries   Adult   Male  
  Canvasback   Aythya valisineria   Secondaries   Adult   Male  
  Canyon Towhee   Melozone fusca   Tail   Adult   Unknown  
  Canyon Towhee   Melozone fusca   Primaries   Adult   Unknown  
  Canyon Towhee   Melozone fusca   Secondaries   Adult   Unknown  
  Cape May Warbler   Setophaga tigrina   Tail   Juvenile   Male  
  Cape May Warbler   Setophaga tigrina   Primaries   Juvenile   Male  
  Cape May Warbler   Setophaga tigrina   Secondaries   Juvenile   Male  
  Carolina Chickadee   Poecile carolinensis   Tail   Adult   Female  
  Carolina Chickadee   Poecile carolinensis   Primaries   Adult   Female  
  Carolina Chickadee   Poecile carolinensis   Secondaries   Adult   Female  
  Carolina Wren   Thryothorus ludovicianus   Tail   Adult   Male   black background
  Carolina Wren   Thryothorus ludovicianus   Tail   Adult   Male   blue background
  Carolina Wren   Thryothorus ludovicianus   Primaries   Adult   Male   black background
  Carolina Wren   Thryothorus ludovicianus   Primaries   Adult   Male   blue background
  Carolina Wren   Thryothorus ludovicianus   Secondaries   Adult   Male  
  Caspian Tern   Hydroprogne caspia   Primaries   Adult   Unknown  
  Caspian Tern   Hydroprogne caspia   Secondaries   Adult   Unknown  
  Caspian Tern   Hydroprogne caspia   Tail   Adult   Unknown  
  Cassins Auklet   Ptychoramphus aleuticus   Tail   Juvenile   Female  
  Cassins Auklet   Ptychoramphus aleuticus   Primaries   Juvenile   Female   Black background
  Cassins Auklet   Ptychoramphus aleuticus   Primaries   Juvenile   Female   Blue background
  Cassins Auklet   Ptychoramphus aleuticus   Secondaries   Juvenile   Female  
  Cassins Finch   Haemorhous cassinii   Tail   Adult   Male  
  Cassins Finch   Haemorhous cassinii   Primaries   Adult   Male  
  Cassins Finch   Haemorhous cassinii   Secondaries   Adult   Male  
  Cattle Egret   Bubulcus ibis   Tail   Adult   Male  
  Cattle Egret   Bubulcus ibis   Primaries   Adult   Male  
  Cattle Egret   Bubulcus ibis   Secondaries   Adult   Male  
  Cedar Waxwing   Bombycilla cedrorum   Tail   Adult   Male  
  Cedar Waxwing   Bombycilla cedrorum   Primaries   Adult   Male  
  Cedar Waxwing   Bombycilla cedrorum   Secondaries   Adult   Male  
  Chestnut-backed Chickadee   Poecile rufescens   Tail   Juvenile   Male  
  Chestnut-backed Chickadee   Poecile rufescens   Primaries   Juvenile   Male  
  Chestnut-backed Chickadee   Poecile rufescens   Secondaries   Juvenile   Male  
  Chestnut-sided Warbler   Setophaga pensylvanica   Tail   Adult   Female  
  Chestnut-sided Warbler   Setophaga pensylvanica   Primaries   Adult   Female  
  Chestnut-sided Warbler   Setophaga pensylvanica   Secondaries   Adult   Female  
  Chihuahuan Raven   Corvus cryptoleucus   Primaries   Adult   Female  
  Chihuahuan Raven   Corvus cryptoleucus   Tail   Adult   Female  
  Chihuahuan Raven   Corvus cryptoleucus   Primaries   Adult   Female  
  Chihuahuan Raven   Corvus cryptoleucus   Secondaries   Adult   Female  
  Chimney Swift   Chaetura pelagica   Tail   Adult   Female  
  Chimney Swift   Chaetura pelagica   Primaries   Adult   Female  
  Chimney Swift   Chaetura pelagica   Secondaries   Adult   Female  
  Chipping Sparrow   Spizella passerina   Tail   Adult   Unknown  
  Chipping Sparrow   Spizella passerina   Primaries   Adult   Unknown  
  Chipping Sparrow   Spizella passerina   Secondaries   Adult   Unknown  
  Chuck-wills-widow   Antrostomus carolinensis   Tail   Adult   Female  
  Chuck-wills-widow   Antrostomus carolinensis   Primaries   Adult   Female  
  Chuck-wills-widow   Antrostomus carolinensis   Secondaries   Adult   Female  
  Chuck-wills-widow   Antrostomus carolinensis   Wing   Adult   Male  
  Chuck-wills-widow   Antrostomus carolinensis   Tail   Adult   Male  
  Chukar   Alectoris chukar   Tail   Juvenile   Female  
  Chukar   Alectoris chukar   Wing   Juvenile   Female  
  Chukar   Alectoris chukar   Tail   Adult   Female  
  Chukar   Alectoris chukar   Primaries   Adult   Female  
  Chukar   Alectoris chukar   Secondaries   Adult   Female  
  Cinnamon Teal   Spatula cyanoptera   Primaries   Adult   Male  
  Cinnamon Teal   Spatula cyanoptera   Tail   Adult   Male  
  Cinnamon Teal   Spatula cyanoptera   Secondaries   Adult   Male  
  Clapper Rail   Rallus crepitans   Tail   Juvenile   Male   Dull-plumaged
  Clapper Rail   Rallus crepitans   Primaries   Juvenile   Male   Dull-plumaged
  Clapper Rail   Rallus crepitans   Secondaries   Juvenile   Male   Dull-plumaged
  Cliff Swallow   Petrochelidon pyrrhonota   Tail   Juvenile   Unknown  
  Cliff Swallow   Petrochelidon pyrrhonota   Primaries   Juvenile   Unknown  
  Cliff Swallow   Petrochelidon pyrrhonota   Secondaries   Juvenile   Unknown  
  Cliff Swallow   Petrochelidon pyrrhonota   Tail   Adult   Unknown  
  Cliff Swallow   Petrochelidon pyrrhonota   Primaries   Adult   Unknown  
  Cliff Swallow   Petrochelidon pyrrhonota   Secondaries   Adult   Unknown  
  Common Eider   Somateria mollissima   Primaries   Adult   Female   Black background
  Common Eider   Somateria mollissima   Primaries   Adult   Female   Blue background
  Common Eider   Somateria mollissima   Secondaries   Adult   Female  
  Common Eider   Somateria mollissima   Tail   Adult   Female  
  Common Eider   Somateria mollissima   Primaries   Adult   Male   Black background
  Common Eider   Somateria mollissima   Primaries   Adult   Male   Blue Background
  Common Eider   Somateria mollissima   Secondaries   Adult   Male  
  Common Eider   Somateria mollissima   Tail   Adult   Male  
  Common Gallinule   Gallinula chloropus   Tail   Adult   Male   Black background
  Common Gallinule   Gallinula chloropus   Tail   Adult   Male   Blue background
  Common Gallinule   Gallinula chloropus   Primaries   Adult   Male   Black background
  Common Gallinule   Gallinula chloropus   Primaries   Adult   Male   Blue background
  Common Gallinule   Gallinula chloropus   Secondaries   Adult   Male  
  Common Goldeneye   Bucephala clangula   Primaries   Adult   Female  
  Common Goldeneye   Bucephala clangula   Secondaries   Adult   Female  
  Common Goldeneye   Bucephala clangula   Primaries   Adult   Male  
  Common Goldeneye   Bucephala clangula   Tail   Adult   Male  
  Common Goldeneye   Bucephala clangula   Secondaries   Adult   Male  
  Common Grackle   Quiscalus quiscula   Tail   Adult   Female   Black background
  Common Grackle   Quiscalus quiscula   Tail   Adult   Female   Blue background
  Common Grackle   Quiscalus quiscula   Primaries   Adult   Female   Black background
  Common Grackle   Quiscalus quiscula   Primaries   Adult   Female   Blue background
  Common Grackle   Quiscalus quiscula   Secondaries   Adult   Female   Black background
  Common Grackle   Quiscalus quiscula   Secondaries   Adult   Female   Blue background
  Common Grackle   Quiscalus quiscula   Tail   Adult   Male   Black background
  Common Grackle   Quiscalus quiscula   Tail   Adult   Male   Blue background
  Common Grackle   Quiscalus quiscula   Primaries   Adult   Male  
  Common Grackle   Quiscalus quiscula   Secondaries   Adult   Male   Black background
  Common Grackle   Quiscalus quiscula   Secondaries   Adult   Male   Blue background
  Common Ground-Dove   Columbina passerina   Tail   Adult   Female  
  Common Ground-Dove   Columbina passerina   Wing   Adult   Female  
  Common Loon   Gavia immer   Tail   Adult   Male  
  Common Loon   Gavia immer   Primaries   Adult   Male  
  Common Loon   Gavia immer   Secondaries   Adult   Male  
  Common Loon   Gavia immer   Other   Adult   Male   scapulars and coverts
  Common Merganser   Mergus merganser   Primaries   Unknown   Female  
  Common Merganser   Mergus merganser   Secondaries   Unknown   Female  
  Common Merganser   Mergus merganser   Primaries   Adult   Male  
  Common Merganser   Mergus merganser   Secondaries   Adult   Male  
  Common Merganser   Mergus merganser   Tail   Adult   Male  
  Common Murre   Uria aalge   Tail   Juvenile   Female  
  Common Murre   Uria aalge   Primaries   Juvenile   Female  
  Common Murre   Uria aalge   Secondaries   Juvenile   Female  
  Common Murre   Uria aalge   Tail   Adult   Male  
  Common Murre   Uria aalge   Primaries   Adult   Male  
  Common Murre   Uria aalge   Secondaries   Adult   Male  
  Common Nighthawk   Chordeiles minor   Tail   Adult   Female  
  Common Nighthawk   Chordeiles minor   Wing   Adult   Female  
  Common Nighthawk   Chordeiles minor   Tail   Adult   Male  
  Common Nighthawk   Chordeiles minor   Wing   Adult   Male  
  Common Poorwill   Phalaenoptilus nuttallii   Tail   Adult   Female  
  Common Poorwill   Phalaenoptilus nuttallii   Tail   Unknown   Male  
  Common Poorwill   Phalaenoptilus nuttallii   Wing   Unknown   Male  
  Common Poorwill   Phalaenoptilus nuttallii   Wing   Adult   Female  
  Common Raven   Corvus corax   Primaries   Adult   Male  
  Common Raven   Corvus corax   Secondaries   Adult   Male  
  Common Raven   Corvus corax   Tail   Adult   Male  
  Common Redpoll   Acanthis flammea   Primaries   Adult   Female  
  Common Redpoll   Acanthis flammea   Secondaries   Adult   Female  
  Common Redpoll   Acanthis flammea   Tail   Adult   Female  
  Common Tern   Sterna hirundo   Tail   Adult   Female   Black background
  Common Tern   Sterna hirundo   Tail   Adult   Female   Blue background
  Common Tern   Sterna hirundo   Primaries   Adult   Female   Black background
  Common Tern   Sterna hirundo   Primaries   Adult   Female   Blue background
  Common Tern   Sterna hirundo   Secondaries   Adult   Female  
  Common Yellowthroat   Geothlypis trichas   Tail   Juvenile   Male  
  Common Yellowthroat   Geothlypis trichas   Primaries   Juvenile   Male  
  Common Yellowthroat   Geothlypis trichas   Secondaries   Juvenile   Male  
  Connecticut Warbler   Oporonis agilis   Tail   Adult   Female  
  Connecticut Warbler   Oporonis agilis   Primaries   Adult   Female  
  Connecticut Warbler   Oporonis agilis        
  Connecticut Warbler   Oporonis agilis   Secondaries   Adult   Female  
  Coopers Hawk   Accipiter cooperii   Primaries   Adult   Female  
  Coopers Hawk   Accipiter cooperii   Secondaries   Adult   Female  
  Coopers Hawk   Accipiter cooperii   Primaries   Juvenile   Unknown  
  Coopers Hawk   Accipiter cooperii   Secondaries   Juvenile   Unknown  
  Coopers Hawk   Accipiter cooperii   Tail   Adult   Female  
  Coopers Hawk   Accipiter cooperii   Tail   Juvenile   Unknown  
  Crested Auklet   Aethia cristatella   Tail   Adult   Female   Black background
  Crested Auklet   Aethia cristatella   Tail   Adult   Female   Blue background
  Crested Auklet   Aethia cristatella   Primaries   Adult   Female   Black background
  Crested Auklet   Aethia cristatella   Primaries   Adult   Female   Blue background
  Crested Auklet   Aethia cristatella   Secondaries   Adult   Female   Blue background
  Crested Auklet   Aethia cristatella   Secondaries   Adult   Female   Black background
  Crested Caracara   Caracara cheriway   Tail   Juvenile   Female  
  Crested Caracara   Caracara cheriway   Primaries   Juvenile   Female   Black background
  Crested Caracara   Caracara cheriway   Primaries   Juvenile   Female   Blue background
  Crested Caracara   Caracara cheriway   Secondaries   Juvenile   Female  
  Crested Caracara   Caracara cheriway   Tail   Adult   Female   Black background
  Crested Caracara   Caracara cheriway   Tail   Adult   Female   Blue background
  Crested Caracara   Caracara cheriway   Primaries   Adult   Female   Black background
  Crested Caracara   Caracara cheriway   Primaries   Adult   Female   Blue background
  Crested Caracara   Caracara cheriway   Secondaries   Adult   Female   Black background
  Crested Caracara   Caracara cheriway   Secondaries   Adult   Female   Blue background
  Dark-eyed Junco   Junco hyemalis   Tail   Juvenile   Female   "Oregon" group
  Dark-eyed Junco   Junco hyemalis   Primaries   Juvenile   Female   "Oregon" group
  Dark-eyed Junco   Junco hyemalis   Secondaries   Juvenile   Female   "Oregon" group
  Dark-eyed Junco   Junco hyemalis   Tail   Adult   Female   "Slate-colored" group
  Dark-eyed Junco   Junco hyemalis   Primaries   Adult   Female   "Slate-colored" group (black background)
  Dark-eyed Junco   Junco hyemalis   Primaries   Adult   Female   "Slate-colored" group (blue background)
  Dark-eyed Junco   Junco hyemalis   Secondaries   Adult   Female   "Slate-colored" group
  Double-crested Cormorant   Phalacrocorax auritus   Tail   Adult   Female   Black background
  Double-crested Cormorant   Phalacrocorax auritus   Tail   Adult   Female   Blue background
  Double-crested Cormorant   Phalacrocorax auritus   Primaries   Adult   Female   Black background
  Double-crested Cormorant   Phalacrocorax auritus   Primaries   Adult   Female   Blue background
  Double-crested Cormorant   Phalacrocorax auritus   Secondaries   Adult   Female  
  Downy Woodpecker   Dryobates pubescens   Tail   Adult   Male  
  Downy Woodpecker   Dryobates pubescens   Primaries   Adult   Male  
  Downy Woodpecker   Dryobates pubescens   Secondaries   Adult   Male  
  Dusky Grouse   Dendragapus obscurus   Tail   Adult   Female   Black background
  Dusky Grouse   Dendragapus obscurus   Tail   Adult   Female   Blue background
  Dusky Grouse   Dendragapus obscurus   Primaries   Adult   Female  
  Dusky Grouse   Dendragapus obscurus   Secondaries   Adult   Female  
  Dusky Grouse   Dendragapus obscurus   Tail   Adult   Male   Black background
  Dusky Grouse   Dendragapus obscurus   Tail   Adult   Male   Blue background
  Dusky Grouse   Dendragapus obscurus   Primaries   Adult   Male  
  Dusky Grouse   Dendragapus obscurus   Secondaries   Adult   Male  
  Eared Grebe   Podiceps nigricollis   Primaries   Unknown   Male  
  Eared Grebe   Podiceps nigricollis   Secondaries   Unknown   Male  
  Eastern Bluebird   Sialia sialis   Tail   Adult   Female  
  Eastern Bluebird   Sialia sialis   Primaries   Adult   Female  
  Eastern Bluebird   Sialia sialis   Secondaries   Adult   Female  
  Eastern Bluebird   Sialia sialis   Tail   Adult   Male  
  Eastern Bluebird   Sialia sialis   Primaries   Adult   Male  
  Eastern Bluebird   Sialia sialis   Secondaries   Adult   Male  
  Eastern Kingbird   Tyrannus tyrannus   Tail   Juvenile   Unknown  
  Eastern Kingbird   Tyrannus tyrannus   Primaries   Juvenile   Unknown  
  Eastern Kingbird   Tyrannus tyrannus   Secondaries   Juvenile   Unknown  
  Eastern Phoebe   Sayornis phoebe   Tail   Adult   Unknown   Black background
  Eastern Phoebe   Sayornis phoebe   Tail   Adult   Unknown   Blue background
  Eastern Phoebe   Sayornis phoebe   Primaries   Adult   Unknown  
  Eastern Phoebe   Sayornis phoebe   Secondaries   Adult   Unknown  
  Eastern Screech-Owl   Megascops asio   Primaries   Adult   Unknown   Red morph
  Eastern Screech-Owl   Megascops asio   Secondaries   Adult   Unknown   Red morph
  Eastern Screech-Owl   Megascops asio   Primaries   Adult   Female  
  Eastern Screech-Owl   Megascops asio   Secondaries   Adult   Female  
  Eastern Screech-Owl   Megascops asio   Tail   Adult   Female  
  Eastern Screech-Owl   Megascops asio   Tail   Adult   Unknown   Red morph
  Eastern Towhee   Pipilo erythrophthalmus   Tail   Adult   Female   Black background
  Eastern Towhee   Pipilo erythrophthalmus   Tail   Adult   Female   Blue background
  Eastern Towhee   Pipilo erythrophthalmus   Primaries   Adult   Female  
  Eastern Towhee   Pipilo erythrophthalmus   Secondaries   Adult   Female  
  Eastern Towhee   Pipilo erythrophthalmus   Tail   Adult   Male   Black background
  Eastern Towhee   Pipilo erythrophthalmus   Tail   Adult   Male   Blue background
  Eastern Towhee   Pipilo erythrophthalmus   Primaries   Adult   Male   Black background
  Eastern Towhee   Pipilo erythrophthalmus   Primaries   Adult   Male   Blue background
  Eastern Towhee   Pipilo erythrophthalmus   Secondaries   Adult   Male   Black background
  Eastern Towhee   Pipilo erythrophthalmus   Secondaries   Adult   Male   Blue background
  Eastern Whip-poor-will   Antrostomus vociferus   Tail   Adult   Female  
  Eastern Whip-poor-will   Antrostomus vociferus   Primaries   Adult   Female  
  Eastern Whip-poor-will   Antrostomus vociferus   Secondaries   Adult   Female  
  Eastern Whip-poor-will   Antrostomus vociferus   Tail   Unknown   Male  
  Eastern Whip-poor-will   Antrostomus vociferus   Wing   Unknown   Male  
  Eastern Wood-Pewee   Contopus virens   Tail   Juvenile   Unknown  
  Eastern Wood-Pewee   Contopus virens   Primaries   Juvenile   Unknown  
  Eastern Wood-Pewee   Contopus virens   Secondaries   Juvenile   Unknown   Black background
  Eastern Wood-Pewee   Contopus virens   Secondaries   Juvenile   Unknown   Blue background
  Elf Owl   Micrathene whitheyi   Primaries   Adult   Unknown  
  Elf Owl   Micrathene whitheyi   Secondaries   Adult   Unknown  
  Elf Owl   Micrathene whitheyi   Tail   Adult   Unknown  
  Emperor Goose   Anser canagica   Primaries   Adult   Male  
  Emperor goose   Anser canagica   Secondaries   Adult   Male  
  Emperor Goose   Anser canagica   Tail   Adult   Male  
  Eurasian Collared-Dove   Streptopelia decaocto   Tail   Adult   Female   Ventral View
  Eurasian Collared-Dove   Streptopelia decaocto   Tail   Adult   Female  
  Eurasian Collared-Dove   Streptopelia decaocto   Primaries   Adult   Female  
  Eurasian Collared-Dove   Streptopelia decaocto   Secondaries   Adult   Female  
  European Starling   Sturnus vulgaris   Tail   Juvenile   Male  
  European Starling   Sturnus vulgaris   Primaries   Juvenile   Male  
  European Starling   Sturnus vulgaris   Secondaries   Juvenile   Male  
  European Starling   Sturnus vulgaris   Tail   Adult   Female   Breeding plumage; age HY/SY
  European Starling   Sturnus vulgaris   Primaries   Adult   Female   Breeding plumage; age HY/SY
  European Starling   Sturnus vulgaris   Secondaries   Adult   Female   Breeding plumage; age HY/SY
  Evening Grosbeak   Coccothraustes vespertinus   Tail   Adult   Male  
  Evening Grosbeak   Coccothraustes vespertinus   Primaries   Adult   Male  
  Evening Grosbeak   Coccothraustes vespertinus   Secondaries   Adult   Male   Black background
  Evening Grosbeak   Coccothraustes vespertinus   Secondaries   Adult   Male   Blue background
  Ferruginous Hawk   Buteo regalis   Tail   Juvenile   Female  
  Ferruginous Hawk   Buteo regalis   Tail   Adult   Unknown  
  Ferruginous Hawk   Buteo regalis   Primaries   Adult   Unknown   Black background
  Ferruginous Hawk   Buteo regalis   Primaries   Adult   Unknown   Blue background
  Ferruginous Hawk   Buteo regalis   Secondaries   Adult   Unknown   Black background
  Ferruginous Hawk   Buteo regalis   Secondaries   Adult   Unknown   Blue background
  Ferruginous Hawk   Buteo regalis   Primaries   Juvenile   Female   Black background
  Ferruginous Hawk   Buteo regalis   Primaries   Juvenile   Female   Blue background
  Ferruginous Hawk   Buteo regalis   Secondaries   Juvenile   Female   Black background
  Ferruginous Hawk   Buteo regalis   Secondaries   Juvenile   Female   Blue background
  Field Sparrow   Spizella pusilla   Tail   Adult   Female   Second Year
  Field Sparrow   Spizella pusilla   Primaries   Adult   Female   Second Year
  Field Sparrow   Spizella pusilla   Secondaries   Adult   Female   Second Year
  Flammulated Owl   Psiloscops flammeolus   Tail   Adult   Unknown  
  Flammulated Owl   Psiloscops flammeolus   Primaries   Adult   Unknown  
  Flammulated Owl   Psiloscops flammeolus   Secondaries   Adult   Unknown  
  Fork-tailed Storm-Petrel   Oceanodroma furcata   Tail   Adult   Unknown  
  Fork-tailed Storm-Petrel   Oceanodroma furcata   Primaries   Adult   Unknown  
  Fork-tailed Storm-Petrel   Oceanodroma furcata   Primaries   Adult   Unknown  
  Fork-tailed Storm-Petrel   Oceanodroma furcata   Secondaries   Adult   Unknown  
  Forsters Tern   Sterna forsteri   Tail   Adult   Unknown   Breeding plumage (black background)
  Forsters Tern   Sterna forsteri   Tail   Adult   Unknown   Breeding plumage (blue background)
  Forsters Tern   Sterna forsteri   Primaries   Adult   Unknown   Breeding plumage (black background)
  Forsters Tern   Sterna forsteri   Secondaries   Adult   Unknown   Breeding plumage
  Forsters Tern   Sterna forsteri   Primaries   Adult   Unknown   Breeding plumage (blue background)
  Fox Sparrow   Passerella iliaca   Primaries   Unknown   Female   "Red" Group
  Fox Sparrow   Passerella iliaca   Secondaries   Unknown   Female   "Red" Group
  Fox Sparrow   Passerella iliaca   Tail   Unknown   Female   "Red" Group
  Fox Sparrow   Passerella iliaca   Primaries   Adult   Female   "Sooty" Group
  Fox Sparrow   Passerella iliaca   Secondaries   Adult   Female   "Sooty" Group
  Fox Sparrow   Passerella iliaca   Tail   Adult   Female   "Sooty" Group
  Franklins Gull   Leucophaeus pipixcan   Tail   Adult   Unknown  
  Franklins Gull   Leucophaeus pipixcan   Primaries   Adult   Unknown  
  Franklins Gull   Leucophaeus pipixcan   Secondaries   Adult   Unknown  
  Fulvous Whistling-Duck   Dendrocygna bicolor   Tail   Adult   Female   Black Background
  Fulvous Whistling-Duck   Dendrocygna bicolor   Tail   Adult   Female   Blue Background
  Fulvous Whistling-Duck   Dendrocygna bicolor   Wing   Adult   Female  
  Gadwall   Mareca strepera   Tail   Adult   Female  
  Gadwall   Mareca strepera   Primaries   Adult   Female  
  Gadwall   Mareca strepera   Secondaries   Adult   Female  
  Gadwall   Mareca strepera   Tail   Adult   Male  
  Gadwall   Mareca strepera   Primaries   Adult   Male  
  Gadwall   Mareca strepera   Secondaries   Adult   Male  
  Gambels Quail   Callipepla gambelii   Tail   Adult   Male  
  Gambels Quail   Callipepla gambelii   Wing   Adult   Male  
  Gila Woodpecker   Melanerpes uropygialis   Tail   Adult   Male  
  Gila Woodpecker   Melanerpes uropygialis   Primaries   Adult   Male  
  Gila Woodpecker   Melanerpes uropygialis   Secondaries   Adult   Male  
  Gilded Flicker   Colaptes chrysoides   Primaries   Adult   Female   Black background
  Gilded Flicker   Colaptes chrysoides   Primaries   Adult   Female   Blue background
  Gilded Flicker   Colaptes chrysoides   Primaries   Adult   Female   Ventral view
  Gilded Flicker   Colaptes chrysoides   Secondaries   Adult   Female  
  Gilded Flicker   Colaptes chrysoides   Secondaries   Adult   Female   Ventral view
  Gilded Flicker   Colaptes chrysoides   Tail   Adult   Female  
  Gilded Flicker   Colaptes chrysoides   Tail   Adult   Female   Ventral view
  Glaucous-winged Gull   Larus glaucescens   Tail   Juvenile   Unknown  
  Glaucous-winged Gull   Larus glaucescens   Primaries   Juvenile   Unknown  
  Glaucous-winged Gull   Larus glaucescens   Secondaries   Juvenile   Unknown  
  Glaucous-winged Gull   Larus glaucescens   Tail   Adult   Male  
  Glaucous-winged Gull   Larus glaucescens   Primaries   Adult   Male  
  Glaucous-winged Gull   Larus glaucescens   Secondaries   Adult   Male  
  Glaucous-winged x Western Gull   Larus glaucescens x Larus occidentalis   Tail   Adult   Male   Hybrid (verified by Gary Shugart)
  Glaucous-winged x Western Gull   Larus glaucescens x Larus occidentalis   Primaries   Adult   Male   Hybrid (verified by Gary Shugart)
  Glaucous-winged x Western Gull   Larus glaucescens x Larus occidentalis   Secondaries   Adult   Male   Hybrid (verified by Gary Shugart)
  Golden Eagle   Aquila chrysaetos   Tail   Subadult I   Male  
  Golden Eagle   Aquila chrysaetos   Tail   Adult   Female   Bold pattern--black background
  Golden Eagle   Aquila chrysaetos   Tail   Adult   Unknown   Weak pattern--black background
  Golden Eagle   Aquila chrysaetos   Tail   3 to 5 years   Female   Central rectrix molt series
  Golden Eagle   Aquila chrysaetos   Secondaries   Adult and subadult   Unknown   Multiple individuals to show variation
  Golden Eagle   Aquila chrysaetos   Wing   Adult   Unknown   Comparison of spotted vs barred patterns
  Golden Eagle   Aquila chrysaetos   Primaries   Adult   Male   Black background
  Golden Eagle   Aquila chrysaetos   Secondaries   Adult   Male   Black background
  Golden Eagle   Aquila chrysaetos   Tail   First year   Male   Blue Background
  Golden Eagle   Aquila chrysaetos   Primaries   First year   Male   Blue background
  Golden Eagle   Aquila chrysaetos   Primaries   First year   Male   Black background
  Golden Eagle   Aquila chrysaetos   Secondaries   First year   Male   Blue background
  Golden Eagle   Aquila chrysaetos   Secondaries   First year   Male   Black background
  Golden Eagle   Aquila chrysaetos   Tail   First year   Male   Black background
  Golden Eagle   Aquila chrysaetos   Tail   Adult   Female   Bold pattern--Blue background
  Golden Eagle   Aquila chrysaetos   Tail   Adult   Unknown   Weak pattern--blue background
  Golden Eagle   Aquila chrysaetos   Tail   Adult   Male   Blue background
  Golden Eagle   Aquila chrysaetos   Tail   Adult   Male   Black background
  Golden Eagle   Aquila chrysaetos   Tail   Third year   Male   Blue background
  Golden Eagle   Aquila chrysaetos   Tail   Third year   Male   Black background
  Golden Eagle   Aquila chrysaetos   Primaries   Adult   Male   Blue background
  Golden Eagle   Aquila chrysaetos   Secondaries   Adult   Male   Blue background
  Golden-crowned Kinglet   Regulus satrapa   Tail   Unknown   Female  
  Golden-crowned Kinglet   Regulus satrapa   Primaries   Unknown   Female  
  Golden-crowned Kinglet   Regulus satrapa   Secondaries   Unknown   Female  
  Golden-crowned Sparrow   Zonotrichia artricapilla   Tail   Adult   Unknown  
  Golden-crowned Sparrow   Zonotrichia artricapilla   Primaries   Adult   Unknown  
  Golden-crowned Sparrow   Zonotrichia artricapilla   Secondaries   Adult   Unknown  
  Golden-fronted Woodpecker   Melanerpes aurifrons   Tail   Adult   Female  
  Golden-fronted Woodpecker   Melanerpes aurifrons   Primaries   Adult   Female  
  Golden-fronted Woodpecker   Melanerpes aurifrons   Secondaries   Adult   Female  
  Grasshopper Sparrow   Ammodramus savannarum   Tail   Adult   Unknown  
  Grasshopper Sparrow   Ammodramus savannarum   Primaries   Adult   Unknown  
  Grasshopper Sparrow   Ammodramus savannarum   Secondaries   Adult   Unknown  
  Gray Catbird   Dumetella carolinensis   Primaries   Adult   Unknown   black background
  Gray Catbird   Dumetella carolinensis   Primaries   Adult   Unknown   blue background
  Gray Catbird   Dumetella carolinensis   Secondaries   Adult   Unknown   black background
  Gray Catbird   Dumetella carolinensis   Secondaries   Adult   Unknown   blue background
  Gray Catbird   Dumetella carolinensis   Tail   Adult   Unknown  
  Gray Partridge   Perdix perdix   Tail   Adult   Male  
  Gray Partridge   Perdix perdix   Wing   Adult   Male  
  Gray-crowned Rosy-Finch   Leucosticte tephrocotis   Tail   Adult   Male   subsp. littoralis black background
  Gray-crowned Rosy-Finch   Leucosticte tephrocotis   Tail   Adult   Male   subsp. littoralis blue background
  Gray-crowned Rosy-Finch   Leucosticte tephrocotis   Primaries   Adult   Male   subsp. littoralis
  Gray-crowned Rosy-Finch   Leucosticte tephrocotis   Secondaries   Adult   Male   subsp. littoralis
  Great Black-backed Gull   Larus marinus   Tail   Adult   Female  
  Great Black-backed Gull   Larus marinus   Primaries   Adult   Female   Black background
  Great Black-backed Gull   Larus marinus   Primaries   Adult   Female   Blue background
  Great Black-backed Gull   Larus marinus   Secondaries   Adult   Female  
  Great Blue Heron   Ardea herodias   Coverts   Juvenile   Female  
  Great Blue Heron   Ardea herodias   Tail   Juvenile   Female  
  Great Blue Heron   Ardea herodias   Primaries   Juvenile   Female  
  Great Blue Heron   Ardea herodias   Secondaries   Juvenile   Female  
  Great Crested Flycatcher   Myiarchus crinitus   Tail   Adult   Female  
  Great Crested Flycatcher   Myiarchus crinitus   Primaries   Adult   Female  
  Great Crested Flycatcher   Myiarchus crinitus   Secondaries   Adult   Female  
  Great Egret   Ardea alba   Tail   Adult   Male  
  Great Egret   Ardea alba   Wing   Adult   Male  
  Great Frigatebird   Fregata minor   Tail   Adult   Male  
  Great Frigatebird   Fregata minor   Primaries   Adult   Male  
  Great Frigatebird   Fregata minor   Secondaries   Adult   Male  
  Great Gray Owl   Strix nebulosa   Primaries   Adult   Female   Black background
  Great Gray Owl   Strix nebulosa   Primaries   Adult   Female   Blue background
  Great Gray Owl   Strix nebulosa   Secondaries   Adult   Female   Black background
  Great Gray Owl   Strix nebulosa   Secondaries   Adult   Female   Blue background
  Great Gray Owl   Strix nebulosa   Tail   Adult   Female  
  Great Horned Owl   Bubo virginianus   Tail   Unknown   Unknown  
  Great Horned Owl   Bubo virginianus   Tail   Adult   Male   Darker individual
  Great Horned Owl   Bubo virginianus   Primaries   Adult   Male   Darker individual
  Great Horned Owl   Bubo virginianus   Secondaries   Adult   Male   Darker individual
  Great Horned Owl   Bubo virginianus   Primaries   Unknown   Unknown  
  Great Kiskadee   Pitangus sulphuratus   Tail   Adult   Female  
  Great Kiskadee   Pitangus sulphuratus   Primaries   Adult   Female  
  Great Kiskadee   Pitangus sulphuratus   Secondaries   Adult   Female  
  Great-tailed Grackle   Quiscalus mexicanus   Tail   Adult   Female  
  Great-tailed Grackle   Quiscalus mexicanus   Primaries   Adult   Female  
  Great-tailed Grackle   Quiscalus mexicanus   Secondaries   Adult   Female  
  Great-tailed Grackle   Quiscalus mexicanus   Tail   Adult   Male  
  Great-tailed Grackle   Quiscalus mexicanus   Primaries   Adult   Male  
  Great-tailed Grackle   Quiscalus mexicanus   Secondaries   Adult   Male  
  Greater Prairie-Chicken   Tympanuchus cupido   Tail   Unknown   Female  
  Greater Prairie-Chicken   Tympanuchus cupido   Wing   Unknown   Female  
  Greater Roadrunner   Geococcyx californianus   Tail   Adult   Male  
  Greater Roadrunner   Geococcyx californianus   Wing   Adult   Male  
  Greater Sage-Grouse   Centrocercus urophasianus   Other   Adult   Male   Upper and Under Tail Coverts
  Greater Sage-Grouse   Centrocercus urophasianus   Tail   Adult   Male  
  Greater Sage-Grouse   Centrocercus urophasianus   Wing   Adult   Male  
  Greater Scaup   Aythya marila   Primaries   Adult   Female  
  Greater Scaup   Aythya marila   Tail   Adult   Female  
  Greater Scaup   Aythya marila   Secondaries   Adult   Female  
  Greater Scaup   Aythya marila   Primaries   Adult   Male  
  Greater Scaup   Aythya marila   Secondaries   Adult   Male  
  Greater Shearwater   Ardenna gravis   Tail   Juvenile   Unknown  
  Greater Shearwater   Ardenna gravis   Primaries   Juvenile   Unknown  
  Greater Shearwater   Ardenna gravis   Secondaries   Juvenile   Unknown  
  Greater White-fronted Goose   Anser albifrons   Primaries   Adult   Unknown   Note tegmen (see glossary)--blue background
  Greater White-fronted Goose   Anser albifrons   Tail   Adult   Unknown  
  Greater White-fronted Goose   Anser albifrons   Primaries   Adult   Unknown   Black background
  Greater White-fronted Goose   Anser albifrons   Primaries   Adult   Unknown   Note tegmen (see glossary)--black background
  Greater White-fronted Goose   Anser albifrons   Primaries   Adult   Unknown   Blue background
  Greater White-fronted Goose   Anser albifrons   Secondaries   Adult   Unknown  
  Greater Yellowlegs   Tringa melanoleuca   Tail   Adult   Female  
  Greater Yellowlegs   Tringa melanoleuca   Primaries   Adult   Female  
  Greater Yellowlegs   Tringa melanoleuca   Secondaries   Adult   Female  
  Green Heron   Butorides virescens   Tail   Adult   Female  
  Green Heron   Butorides virescens   Wing   Adult   Female  
  Green Jay   Cyanocorax yncas   Tail   Adult   Female  
  Green Jay   Cyanocorax yncas   Primaries   Adult   Female  
  Green Jay   Cyanocorax yncas   Secondaries   Adult   Female  
  Green Kingfisher   Chloroceryle americana   Tail   Adult   Female   Black background
  Green Kingfisher   Chloroceryle americana   Tail   Adult   Female   Blue background
  Green Kingfisher   Chloroceryle americana   Primaries   Adult   Female   Black background
  Green Kingfisher   Chloroceryle americana   Primaries   Adult   Female   Blue background
  Green Kingfisher   Chloroceryle americana   Secondaries   Adult   Female   Black background
  Green Kingfisher   Chloroceryle americana   Secondaries   Adult   Female   Blue background
  Green Parakeet   Psittacara holochlorus   Tail   Adult   Female  
  Green Parakeet   Psittacara holochlorus   Primaries   Adult   Female  
  Green Parakeet   Psittacara holochlorus   Tail   Adult   Female   Ventral view
  Green Parakeet   Psittacara holochlorus   Secondaries   Adult   Female  
  Green-tailed Towhee   Pipilo chlorurus   Tail   Adult   Male  
  Green-tailed Towhee   Pipilo chlorurus   Primaries   Adult   Male  
  Green-tailed Towhee   Pipilo chlorurus   Secondaries   Adult   Male  
  Green-winged Teal   Anas crecca   Primaries   Adult   Female  
  Green-winged Teal   Anas crecca   Primaries   Adult   Male  
  Green-winged Teal   Anas crecca   Secondaries   Adult   Female  
  Green-winged Teal   Anas crecca   Secondaries   Adult   Male  
  Green-winged Teal   Anas crecca   Tail   Adult   Female  
  Green-winged Teal   Anas crecca   Tail   Adult   Male  
  Gull-billed Tern   Gelochelidon nilotica   Tail   Adult   Unknown  
  Gull-billed Tern   Gelochelidon nilotica   Primaries   Adult   Unknown  
  Gull-billed Tern   Gelochelidon nilotica   Secondaries   Adult   Unknown   Black background
  Gull-billed Tern   Gelochelidon nilotica   Secondaries   Adult   Unknown   Blue background
  Gyrfalcon   Falco rusticolus   Primaries   Adult   Female   Gray phase--female
  Gyrfalcon   Falco rusticolus   Secondaries   Adult   Female   Gray phase--female
  Gyrfalcon   Falco rusticolus   Primaries   Juvenile   Female   Black background
  Gyrfalcon   Falco rusticolus   Primaries   Juvenile   Female   Blue background
  Gyrfalcon   Falco rusticolus   Secondaries   Juvenile   Female  
  Gyrfalcon   Falco rusticolus   Tail   Adult   Female   Gray phase--female
  Hairy Woodpecker   Dryobates villosus   Tail   Juvenile   Male  
  Hairy Woodpecker   Dryobates villosus   Primaries   Juvenile   Male  
  Hairy Woodpecker   Dryobates villosus   Secondaries   Juvenile   Male  
  Hairy Woodpecker   Dryobates villosus   Tail   Adult   Female  
  Hairy Woodpecker   Dryobates villosus   Primaries   Adult   Female  
  Hairy Woodpecker   Dryobates villosus   Secondaries   Adult   Female  
  Harlequin Duck   Histrionicus histrionicus   Primaries   Adult   Female  
  Harlequin Duck   Histrionicus histrionicus   Secondaries   Adult   Female  
  Harlequin Duck   Histrionicus histrionicus   Tail   Adult   Female  
  Harlequin Duck   Histrionicus histrionicus   Primaries   Adult   Male  
  Harlequin Duck   Histrionicus histrionicus   Secondaries   Adult   Male  
  Harlequin Duck   Histrionicus histrionicus   Tail   Adult   Male  
  Harriss Hawk   Parabuteo unicinctus   Tail   Adult   Female  
  Harriss Hawk   Parabuteo unicinctus   Tail   Juvenile   Male   Black background
  Harriss Hawk   Parabuteo unicinctus   Tail   Juvenile   Male   Blue background
  Harriss Hawk   Parabuteo unicinctus   Tail   Juvenile   Male   Ventral view--black background
  Harriss Hawk   Parabuteo unicinctus   Tail   Juvenile   Male   Ventral view--blue background
  Harriss Hawk   Parabuteo unicinctus   Primaries   Juvenile   Male   Black background
  Harriss Hawk   Parabuteo unicinctus   Primaries   Juvenile   Male   Blue background
  Harriss Hawk   Parabuteo unicinctus   Secondaries   Juvenile   Male   Black background
  Harriss Hawk   Parabuteo unicinctus   Secondaries   Juvenile   Male   Blue background
  Harriss Hawk   Parabuteo unicinctus   Primaries   Adult   Female  
  Harriss Hawk   Parabuteo unicinctus   Secondaries   Adult   Female  
  Hawaiian Duck   Anas wyvilliana   Tail   Adult   Female  
  Hawaiian Duck   Anas wyvilliana   Primaries   Adult   Male   Black background
  Hawaiian Duck   Anas wyvilliana   Primaries   Adult   Male   Blue background
  Hawaiian Duck   Anas wyvilliana   Secondaries   Adult   Male  
  Hawaiian Duck   Anas wyvilliana   Primaries   Adult   Female  
  Hawaiian duck   Anas wyvilliana   Secondaries   Adult   Female  
  Hawaiian Hawk   Buteo solitarius   Tail   Adult   Male  
  Hawaiian Hawk   Buteo solitarius   Primaries   Adult   Male  
  Hawaiian Hawk   Buteo solitarius   Secondaries   Adult   Male  
  Hawaiian Petrel   Pterodroma sandwichensis   Tail   Adult   Female   Black background
  Hawaiian Petrel   Pterodroma sandwichensis   Tail   Adult   Female   Blue background
  Hawaiian Petrel   Pterodroma sandwichensis   Primaries   Adult   Female  
  Hawaiian Petrel   Pterodroma sandwichensis   Secondaries   Adult   Female  
  Heermans Gull   Larus heermanni   Tail   Adult   Unknown   Nonbreeding plumage
  Heermans gull   Larus heermanni   Primaries   Adult   Unknown   Nonbreeding plumage
  Heermans gull   Larus heermanni   Secondaries   Adult   Unknown   Nonbreeding plumage
  Helmeted Guineafowl   Numida meleagris   Tail   Adult   Male   Native to Africa; barnyard bird in North America
  Helmeted Guineafowl   Numida meleagris   Tail   Adult   Male   Native to Africa; barnyard bird in North America
  Helmeted Guineafowl   Numida meleagris   Primaries   Adult   Male   Native to Africa; barnyard bird in North America
  Helmeted Guineafowl   Numida meleagris   Secondaries   Adult   Male   Native to Africa; barnyard bird in North America
  Hermit Thrush   Catharus guttatus   Tail   Adult   Male  
  Hermit Thrush   Catharus guttatus   Primaries   Adult   Male  
  Hermit Thrush   Catharus guttatus   Secondaries   Adult   Male  
  Herring Gull   Larus argentatus   Tail   Adult   Unknown  
  Herring Gull   Larus argentatus   Primaries   Adult   Unknown   Black background
  Herring Gull   Larus argentatus   Primaries   Adult   Unknown   Blue background
  Herring Gull   Larus argentatus   Secondaries   Adult   Unknown  
  Hooded Merganser   Lophodytes cucullatus   Primaries   Adult   Female  
  Hooded Merganser   Lophodytes cucullatus   Secondaries   Adult   Female  
  Hooded Merganser   Lophodytes cucullatus   Tail   Adult   Female  
  Hooded Merganser   Lophodytes cucullatus   Primaries   Adult   Male  
  Hooded Merganser   Lophodytes cucullatus   Secondaries   Adult   Male  
  Hooded Merganser   Lophodytes cucullatus   Tail   Adult   Male  
  Hooded Oriole   Icterus cucullatus   Tail   Adult   Male  
  Hooded Oriole   Icterus cucullatus   Primaries   Adult   Male  
  Hooded Oriole   Icterus cucullatus   Secondaries   Adult   Male  
  Horned Lark   Eremophila alpestris   Tail   Adult   Female  
  Horned Lark   Eremophila alpestris   Primaries   Adult   Female  
  Horned Lark   Eremophila alpestris   Secondaries   Adult   Female  
  House Finch   Haemorhous mexicanus   Tail   Juvenile   Female  
  House Finch   Haemorhous mexicanus   Primaries   Juvenile   Female  
  House Finch   Haemorhous mexicanus   Secondaries   Juvenile   Female  
  House Finch   Haemorhous mexicanus   Tail   Adult   Male  
  House Finch   Haemorhous mexicanus   Primaries   Adult   Male  
  House Finch   Haemorhous mexicanus   Secondaries   Adult   Male  
  House Sparrow   Passer domesticus   Tail   Adult   Male  
  House Sparrow   Passer domesticus   Primaries   Adult   Male  
  House Sparrow   Passer domesticus   Secondaries   Adult   Male   Blue background
  House Sparrow   Passer domesticus   Secondaries   Adult   Male   Black background
  House Wren   Troglodytes aedon   Tail   Adult   Female  
  House Wren   Troglodytes aedon   Primaries   Adult   Female  
  House Wren   Troglodytes aedon   Secondaries   Adult   Female  
  Huttons Vireo   Vireo huttoni   Tail   Juvenile   Male  
  Huttons Vireo   Vireo huttoni   Primaries   Juvenile   Male  
  Huttons Vireo   Vireo huttoni   Secondaries   Juvenile   Male  
  Inca Dove   Columbina inca   Tail   Adult   Male  
  Inca Dove   Columbina inca   Wing   Adult   Male  
  Indigo Bunting   Passerina cyanea   Tail   Unknown   Female  
  Indigo Bunting   Passerina cyanea   Primaries   Unknown   Female  
  Indigo Bunting   Passerina cyanea   Secondaries   Unknown   Female  
  Indigo Bunting   Passerina cyanea   Tail   Adult   Male  
  Indigo Bunting   Passerina cyanea   Primaries   Adult   Male  
  Indigo Bunting   Passerina cyanea   Secondaries   Adult   Male  
  Killdeer   Charadrius vociferus   Tail   Adult   Female  
  Killdeer   Charadrius vociferus   Primaries   Adult   Female   Black background
  Killdeer   Charadrius vociferus   Primaries   Adult   Female   Blue background
  Killdeer   Charadrius vociferus   Secondaries   Adult   Female   Black background
  Killdeer   Charadrius vociferus   Secondaries   Adult   Female   Blue background
  King Eider   Somateria spectabilis   Primaries   Adult   Female  
  King Eider   Somateria spectabilis   Secondaries   Adult   Female  
  King Eider   Somateria spectabilis   Tail   Adult   Female  
  King Eider   Somateria spectabilis   Primaries   Adult   Male   Black background
  King Eider   Somateria spectabilis   Primaries   Adult   Male   Blue background
  King Eider   Somateria spectabilis   Secondaries   Adult   Male  
  King Eider   Somateria spectabilis   Tail   Adult   Male  
  Kirtlands Warbler   Setophaga kirtlandii   Tail   Juvenile   Female  
  Kirtlands Warbler   Setophaga kirtlandii   Primaries   Juvenile   Female  
  Kirtlands Warbler   Setophaga kirtlandii   Secondaries   Juvenile   Female  
  Ladder-backed Woodpecker   Dryobates scalaris   Tail   Juvenile   Male   Vane length not measured for feathers in sheath.
  Ladder-backed Woodpecker   Dryobates scalaris   Wing   Juvenile   Male   Vane length not measured for feathers in sheath.
  Lapland Longspur   Calcarius lapponicus   Tail   Adult   Female  
  Lapland Longspur   Calcarius lapponicus   Primaries   Adult   Female  
  Lapland Longspur   Calcarius lapponicus   Secondaries   Adult   Female  
  Lapland Longspur   Calcarius lapponicus   Tail   Adult   Male  
  Lapland Longspur   Calcarius lapponicus   Primaries   Adult   Male  
  Lapland Longspur   Calcarius lapponicus   Secondaries   Adult   Male  
  Lark Sparrow   Chondestes grammacus   Tail   Adult   Unknown  
  Lark Sparrow   Chondestes grammacus   Primaries   Adult   Unknown  
  Lark Sparrow   Chondestes grammacus   Secondaries   Adult   Unknown  
  Laughing Gull   Leucophaeus atricilla   Tail   Juvenile   Female   Black background
  Laughing Gull   Leucophaeus atricilla   Tail   Juvenile   Female   Blue background
  Laughing Gull   Leucophaeus atricilla   Primaries   Juvenile   Female  
  Laughing Gull   Leucophaeus atricilla   Secondaries   Juvenile   Female   Black background
  Laughing Gull   Leucophaeus atricilla   Secondaries   Juvenile   Female   Blue background
  Laughing Gull   Leucophaeus atricilla   Tail   Adult   Male  
  Laughing Gull   Leucophaeus atricilla   Primaries   Adult   Male  
  Laughing Gull   Leucophaeus atricilla   Secondaries   Adult   Male   Black background
  Laughing Gull   Leucophaeus atricilla   Secondaries   Adult   Male   Blue background
  Laysan Albatross   Phoebastria immutabilis   Tail   Adult   Female   Black background
  Laysan Albatross   Phoebastria immutabilis   Tail   Adult   Female   Blue background
  Laysan Albatross   Phoebastria immutabilis   Primaries   Adult   Female   Black background
  Laysan Albatross   Phoebastria immutabilis   Primaries   Adult   Female   Blue background
  Laysan Albatross   Phoebastria immutabilis   Secondaries   Adult   Female   Black background
  Laysan Albatross   Phoebastria immutabilis   Secondaries   Adult   Female   Blue background
  Laysan Albatross   Phoebastria immutabilis   Other   Adult   Female   Black background
  Laysan Albatross   Phoebastria immutabilis   Other   Adult   Female   Blue background
  Lazuli Bunting   Passerina amoena   Tail   Adult   Male  
  Lazuli Bunting   Passerina amoena   Primaries   Adult   Male  
  Lazuli Bunting   Passerina amoena   Secondaries   Adult   Male  
  Leachs Storm-Petrel   Oceanodroma leucorhoa   Tail   Adult   Unknown  
  Leachs Storm-Petrel   Oceanodroma leucorhoa   Primaries   Adult   Unknown  
  Leachs Storm-Petrel   Oceanodroma leucorhoa   Secondaries   Adult   Unknown  
  Least Bittern   Ixobrychus exilis   Tail   Adult   Male  
  Least Bittern   Ixobrychus exilis   Primaries   Adult   Male  
  Least Bittern   Ixobrychus exilis   Secondaries   Adult   Male  
  Least Sandpiper   Calidris minutilla   Tail   Adult   Unknown   Black background
  Least Sandpiper   Calidris minutilla   Tail   Adult   Unknown   Blue background
  Least Sandpiper   Calidris minutilla   Primaries   Adult   Unknown   Black background
  Least Sandpiper   Calidris minutilla   Primaries   Adult   Unknown   Blue background
  Least Sandpiper   Calidris minutilla   Secondaries   Adult   Unknown   Black background
  Least Sandpiper   Calidris minutilla   Secondaries   Adult   Unknown   Blue background`
  Least Tern   Sternula antillarum   Tail   Adult   Male   Interior subsp. athalasoss
  Least Tern   Sternula antillarum   Primaries   Adult   Male   Interior subsp. athalassos
  Least Tern   Sternula antillarum   Secondaries   Adult   Male   Interior subsp. athalassos
  Least Tern   Sternula antillarum   Tail   Juvenile   Unknown  
  Least Tern   Sternula antillarum   Primaries   Juvenile   Unknown   Black background
  Least Tern   Sternula antillarum   Primaries   Juvenile   Unknown   Blue background
  Least Tern   Sternula antillarum   Secondaries   Juvenile   Unknown  
  Lesser Goldfinch   Spinus psaltria   Tail   Adult   Male   Blue background
  Lesser Goldfinch   Spinus psaltria   Tail   Adult   Male   Black background
  Lesser Goldfinch   Spinus psaltria   Primaries   Adult   Male  
  Lesser Goldfinch   Spinus psaltria   Secondaries   Adult   Male  
  Lesser Goldfinch   Spinus psaltria   Tail   Juvenile   Male   Black background
  Lesser Goldfinch   Spinus psaltria   Tail   Juvenile   Male   Blue background
  Lesser Goldfinch   Spinus psaltria   Primaries   Juvenile   Male  
  Lesser Goldfinch   Spinus psaltria   Secondaries   Juvenile   Male   Black background
  Lesser Goldfinch   Spinus psaltria   Secondaries   Juvenile   Male   Blue background
  Lesser Nighthawk   Chordeiles acutipennis   Tail   Juvenile   Female  
  Lesser Nighthawk   Chordeiles acutipennis   Wing   Juvenile   Female  
  Lesser Nighthawk   Chordeiles acutipennis   Tail   Adult   Male  
  Lesser Nighthawk   Chordeiles acutipennis   Wing   Adult   Male  
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Tail   Adult   Female  
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Tail   Adult   Male  
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Primaries   Adult   Male   Black background
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Primaries   Adult   Male   Blue background
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Secondaries   Adult   Male   Black background
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Secondaries   Adult   Male   Blue background
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Primaries   Adult   Female   Black background
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Primaries   Adult   Female   Blue background
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Secondaries   Adult   Female   Black background
  Lesser Prairie-Chicken   Tympanuchus pallidicinctus   Secondaries   Adult   Female   Blue background
  Lesser Scaup   Aythya affinis   Primaries   Adult   Female   Black background
  Lesser Scaup   Aythya affinis   Primaries   Adult   Female   Blue background
  Lesser Scaup   Aythya affinis   Primaries   Adult   Male   Black background
  Lesser Scaup   Aythya affinis   Primaries   Adult   Male   Blue background
  Lesser Scaup   Aythya affinis   Secondaries   Adult   Female  
  Lesser Scaup   Aythya affinis   Secondaries   Adult   Male  
  Lesser Scaup   Aythya affinis   Tail   Adult   Female  
  Lesser Scaup   Aythya affinis   Tail   Adult   Male  
  Lewiss Woodpecker   Melanerpes lewis   Tail   Adult   Male   Black background
  Lewiss Woodpecker   Melanerpes lewis   Tail   Adult   Male   Gray background
  Lewiss Woodpecker   Melanerpes lewis   Primaries   Adult   Male   Black background
  Lewiss Woodpecker   Melanerpes lewis   Primaries   Adult   Male   Gray background
  Lewiss Woodpecker   Melanerpes lewis   Secondaries   Adult   Male   Black background
  Lewiss Woodpecker   Melanerpes lewis   Secondaries   Adult   Male   Gray background
  Limpkin   Aramus guarauna   Tail   Adult   Male  
  Limpkin   Aramus guarauna   Primaries   Adult   Male  
  Limpkin   Aramus guarauna   Secondaries   Adult   Male  
  Lincolns Sparrow   Melospiza lincolnii   Tail   Juvenile   Female  
  Lincolns Sparrow   Melospiza lincolnii   Primaries   Juvenile   Female  
  Lincolns Sparrow   Melospiza lincolnii   Secondaries   Juvenile   Female  
  Little Blue Heron   Egretta caerulea   Tail   Adult   Male  
  Little Blue Heron   Egretta caerulea   Primaries   Adult   Male  
  Little Blue Heron   Egretta caerulea   Secondaries   Adult   Male  
  Little Blue Heron   Egretta caerulea   Tail   Juvenile   Unknown  
  Little Blue Heron   Egretta caerulea   Wing   Juvenile   Unknown  
  Loggerhead Shrike   Lanius ludovicianus   Tail   Adult   Male  
  Loggerhead Shrike   Lanius ludovicianus   Primaries   Adult   Male  
  Loggerhead Shrike   Lanius ludovicianus   Secondaries   Adult   Male   Ninth secondary missing
  Long-billed Dowitcher   Limnodromus scolopaceus   Rectirces   Adult   Male   Non-breeding plumage
  Long-billed Dowitcher   Limnodromus scolopaceus   Primaries   Adult   Male   Non-breeding plumage--black background
  Long-billed Dowitcher   Limnodromus scolopaceus   Primaries   Adult   Male   Non-breeding plumage--blue background
  Long-billed Dowitcher   Limnodromus scolopaceus   Secondaries   Adult   Male   Non-breeding plumage--black background
  Long-billed Dowitcher   Limnodromus scolopaceus   Secondaries   Adult   Male   Non-breeding plumage--blue background
  Long-eared Owl   Asio otus   Primaries   Adult   Female  
  Long-eared Owl   Asio otus   Secondaries   Adult   Female  
  Long-eared Owl   Asio otus   Primaries   Adult   Male  
  Long-eared Owl   Asio otus   Secondaries   Adult   Male  
  Long-eared Owl   Asio otus   Tail   Adult   Female  
  Long-eared Owl   Asio otus   Tail   Adult   Male  
  Long-tailed Duck   Clangula hyemalis   Primaries   Adult   Female  
  Long-tailed Duck   Clangula hyemalis   Secondaries   Adult   Female  
  Long-tailed Duck   Clangula hyemalis   Tail   Adult   Female  
  Long-tailed Duck   Clangula hyemalis   Secondaries   Adult   Male   Adult Male--winter plumage
  Long-tailed Duck   Clangula hyemalis   Tail   Adult   Male   Adult Male--winter plumage
  Long-tailed Duck   Clangula hyemalis   Primaries   Adult   Male   Adult Male--winter plumage
  Louisiana Waterthrush   Parkesia motacilla   Tail   Adult   Male  
  Louisiana Waterthrush   Parkesia motacilla   Primaries   Adult   Male  
  Louisiana Waterthrush   Parkesia motacilla   Secondaries   Adult   Male  
  Lucys Warbler   Leiothlypis luciae   Tail   Unknown   Female  
  Lucys Warbler   Leiothlypis luciae   Primaries   Unknown   Female  
  Lucys Warbler   Leiothlypis luciae   Secondaries   Unknown   Female  
  MacGillivrays Warbler   Geothlypis tolmiei   Tail   Adult   Male  
  MacGillivrays Warbler   Geothlypis tolmiei   Primaries   Adult   Male  
  MacGillivrays Warbler   Geothlypis tolmiei   Secondaries   Adult   Male  
  Magnolia Warbler   Setophaga magnolia   Tail   Adult   Male  
  Magnolia Warbler   Setophaga magnolia   Primaries   Adult   Male  
  Magnolia Warbler   Setophaga magnolia   Secondaries   Adult   Male  
  Mallard   Anas platyrhynchos   Primaries   Adult   Male  
  Mallard   Anas platyrhynchos   Secondaries   Adult   Male  
  Mallard   Anas platyrhynchos   Tail   Adult   Male  
  Mallard   Anas platyrhynchos   Primaries   Adult   Female  
  Mallard   Anas platyrhynchos   Secondaries   Adult   Female  
  Mallard   Anas platyrhynchos   Tail   Adult   Female  
  Marbled Murrelet   Brachyramphus marmoratus   Tail   Adult   Unknown  
  Marbled Murrelet   Brachyramphus marmoratus   Primaries   Adult   Unknown  
  Marbled Murrelet   Brachyramphus marmoratus   Secondaries   Adult   Unknown  
  Marsh Wren   Cistothorus palustris   Tail   Juvenile   Female  
  Marsh Wren   Cistothorus palustris   Primaries   Juvenile   Female   Black background
  Marsh Wren   Cistothorus palustris   Primaries   Juvenile   Female   Blue background
  Marsh Wren   Cistothorus palustris   Secondaries   Juvenile   Female  
  Masked Booby   Sula dactylatra   Tail   Adult   Female  
  Masked Booby   Sula dactylatra   Primaries   Adult   Female  
  Masked Booby   Sula dactylatra   Secondaries   Adult   Female  
  Merlin   Falco columbarius   Primaries   Juvenile   Male  
  Merlin   Falco columbarius   Secondaries   Juvenile   Male  
  Merlin   Falco columbarius   Primaries   Adult   Male  
  Merlin   Falco columbarius   Secondaries   Adult   Male  
  Merlin   Falco columbarius   Tail   Juvenile   Male   Subspecies Richardsoni
  Merlin   Falco columbarius   Primaries   Juvenile   Male   Subspecies Richardsoni
  Merlin   Falco columbarius   Secondaries   Juvenile   Male   Subspecies Richardsoni
  Merlin   Falco columbarius   Tail   Juvenile   Male  
  Merlin   Falco columbarius   Tail   Adult   Male  
  Mew Gull   Larus canus   Tail   Adult   Female   Black background
  Mew Gull   Larus canus   Tail   Adult   Female   Blue background
  Mew Gull   Larus canus   Primaries   Adult   Female   Black background
  Mew Gull   Larus canus   Primaries   Adult   Female   Blue background
  Mew Gull   Larus canus   Secondaries   Adult   Female  
  Mississippi Kite   Ictinia mississippiensis   Primaries   Adult   Unknown  
  Mississippi Kite   Ictinia mississippiensis   Primaries   Adult   Unknown   Ventral view--black background
  Mississippi Kite   Ictinia mississippiensis   Primaries   Adult   Unknown   Ventral view--blue background
  Mississippi Kite   Ictinia mississippiensis   Secondaries   Adult   Unknown  
  Mississippi Kite   Ictinia mississippiensis   Primaries   Juvenile   Unknown   Black background
  Mississippi Kite   Ictinia mississippiensis   Primaries   Juvenile   Unknown   Blue background
  Mississippi Kite   Ictinia mississippiensis   Secondaries   Juvenile   Unknown   Black background
  Mississippi kite   Ictinia mississippiensis   Secondaries   Juvenile   Unknown   Blue background
  Mississippi Kite   Ictinia mississippiensis   Tail   Adult   Unknown  
  Mississippi Kite   Ictinia mississippiensis   Tail   Juvenile   Unknown  
  Monk Parakeet   Myiopsitta monachus   Tail   Adult   Male  
  Monk Parakeet   Myiopsitta monachus   Primaries   Adult   Male  
  Monk Parakeet   Myiopsitta monachus   Secondaries   Adult   Male  
  Mottled Duck   Anas fulvigula   Secondaries   Adult   Male  
  Mottled Duck   Anas fulvigula   Primaries   Adult   Male  
  Mottled Duck   Anas fulvigula   Tail   Adult   Male  
  Mountain Bluebird   Sialia currucoides   Tail   Adult   Female  
  Mountain Bluebird   Sialia currucoides   Primaries   Adult   Female  
  Mountain Bluebird   Sialia currucoides   Secondaries   Adult   Female  
  Mountain Bluebird   Sialia currucoides   Tail   Adult   Male  
  Mountain Bluebird   Sialia currucoides   Primaries   Adult   Male  
  Mountain Bluebird   Sialia currucoides   Secondaries   Adult   Male  
  Mountain Quail   Oreortyx pictus   Tail   First Year   Male  
  Mountain Quail   Oreortyx pictus   Wing   First Year   Male  
  Mourning Dove   Zenaida macroura   Tail   Juvenile   Female  
  Mourning Dove   Zenaida macroura   Wing   Juvenile   Female  
  Mourning Dove   Zenaida macroura   Tail   Adult   Female   Black background
  Mourning Dove   Zenaida macroura   Tail   Adult   Female   Blue background
  Mourning Dove   Zenaida macroura   Primaries   Adult   Female   Black background
  Mourning Dove   Zenaida macroura   Primaries   Adult   Female   Blue background
  Mourning Dove   Zenaida macroura   Secondaries   Adult   Female   Black background
  Mourning Dove   Zenaida macroura   Secondaries   Adult   Female   Blue background
  Mourning Warbler   Geothlypis philadelphia   Tail   Adult   Male  
  Mourning Warbler   Geothlypis philadelphia   Primaries   Adult   Male  
  Mourning Warbler   Geothlypis philadelphia   Secondaries   Adult   Male  
  Muscovy Duck   Cairina moschata   Tail   Adult   Female   Feral bird, south Texas
  Muscovy Duck   Cairina moschata   Primaries   Adult   Female   Feral bird, south Texas
  Muscovy Duck   Cairina moschata   Secondaries   Adult   Female   Feral bird, south Texas
  Nashville Warbler   Leiothlypis ruficapilla   Primaries   Adult   Male  
  Nashville Warbler   Leiothlypis ruficapilla   Secondaries   Adult   Male  
  Nashville Warbler   Leiothlypis ruficapilla   Tail   Adult   Male  
  Nashville Warbler   Leiothlypis ruficapilla   Primaries   Adult   Male  
  Nene   Branta sandvicensis   Tail   Adult   Male   Also known as Hawaiian Goose
  Nene   Branta sandvicensis   Primaries   Adult   Male   Also known as Hawaiian Goose
  Nene   Branta sandvicensis   Secondaries   Adult   Male   Also known as Hawaiian Goose (Black background)
  Nene   Branta sandvicensis   Secondaries   Adult   Male   Also known as Hawaiian Goose (Blue background)
  Neotropic Cormorant   Phalacrocorax brasilianus   Tail   Juvenile   Female  
  Neotropic Cormorant   Phalacrocorax brasilianus   Primaries   Juvenile   Female  
  Neotropic Cormorant   Phalacrocorax brasilianus   Secondaries   Juvenile   Female  
  Newells Shearwater   Puffinus newelli   Tail   Adult   Unknown  
  Newells Shearwater   Puffinus newelli   Primaries   Adult   Unknown  
  Newells Shearwater   Puffinus newelli   Secondaries   Adult   Unknown  
  Northern Bobwhite   Colinus virginianus   Tail   Adult   Female  
  Northern Bobwhite   Colinus virginianus   Wing   Adult   Female  
  Northern Bobwhite   Colinus virginianus   Tail   Adult   Male  
  Northern Bobwhite   Colinus virginianus   Wing   Adult   Male  
  Northern Cardinal   Cardinalis cardinalis   Primaries   Adult   Female  
  Northern Cardinal   Cardinalis cardinalis   Tail   Adult   Female  
  Northern Cardinal   Cardinalis cardinalis   Secondaries   Adult   Female  
  Northern Cardinal   Cardinalis cardinalis   Tail   Adult   Male  
  Northern Cardinal   Cardinalis cardinalis   Primaries   Adult   Male  
  Northern Cardinal   Cardinalis cardinalis   Secondaries   Adult   Male  
  Northern Flicker (red-shafted)   Colaptes auratus   Tail   Adult   Female  
  Northern Flicker (red-shafted)   Colaptes auratus   Tail   Adult   Female   Ventral view
  Northern Flicker (red-shafted)   Colaptes auratus   Primaries   Adult   Female   Black background
  Northern Flicker (red-shafted)   Colaptes auratus   Primaries   Adult   Female   Blue background
  Northern Flicker (red-shafted)   Colaptes auratus   Primaries   Adult   Female   Ventral view
  Northern Flicker (red-shafted)   Colaptes auratus   Secondaries   Adult   Female  
  Northern Flicker (red-shafted)   Colaptes auratus   Secondaries   Adult   Female   Ventral view
  Northern Flicker (yellow-shafted)   Colaptes auratus   Primaries   Adult   Male   Black background
  Northern Flicker (yellow-shafted)   Colaptes auratus   Primaries   Adult   Male   Blue background
  Northern Flicker (yellow-shafted)   Colaptes auratus   Primaries   Adult   Male   Ventral View
  Northern Flicker (yellow-shafted)   Colaptes auratus   Secondaries   Adult   Male  
  Northern Flicker (yellow-shafted)   Colaptes auratus   Secondaries   Adult   Male   Ventral View
  Northern Flicker (yellow-shafted)   Colaptes auratus   Tail   Adult   Male  
  Northern Flicker (yellow-shafted)   Colaptes auratus   Tail   Adult   Male   Ventral view
  Northern Fulmar   Fulmarus glacialis   Primaries   Adult   Unknown   Dark morph subspecies rodgersii black background
  Northern Fulmar   Fulmarus glacialis   Tail   Adult   Unknown   Dark morph subspecies rodgersii
  Northern Fulmar   Fulmarus glacialis   Primaries   Adult   Unknown   Dark morph subspecies rodgersii blue background
  Northern Fulmar   Fulmarus glacialis   Secondaries   Adult   Unknown   Dark morph subspecies rodgersii
  Northern Fulmar   Fulmarus glacialis   Other   Adult   Female   Light morph subspecies rodgersii
  Northern Fulmar   Fulmarus glacialis   Tail   Adult   Female   Light morph subspecies rodgersii
  Northern Fulmar   Fulmarus glacialis   Primaries   Adult   Female   Light morph subspecies rodgersii
  Northern Fulmar   Fulmarus glacialis   Secondaries   Adult   Female   Light morph subspecies rodgersii
  Northern Gannet   Morus bassanus   Tail   Subadult   Female  
  Northern Gannet   Morus bassanus   Primaries   Subadult   Female  
  Northern Gannet   Morus bassanus   Secondaries   Subadult   Female  
  Northern Goshawk   Accipiter gentilis   Primaries   Adult   Female  
  Northern Goshawk   Accipiter gentilis   Secondaries   Adult   Female  
  Northern Goshawk   Accipiter gentilis   Primaries   Juvenile   Unknown  
  Northern Goshawk   Accipiter gentilis   Secondaries   Juvenile   Unknown  
  Northern Goshawk   Accipiter gentilis   Tail   Adult   Female  
  Northern Goshawk   Accipiter gentilis   Tail   Juvenile   Unknown  
  Northern Goshawk   Accipiter gentilis   Primaries   Adult   Female   Dorsal/ventral comparison
  Northern Harrier   Circus hudsonius   Tail   Unknown   Female  
  Northern Harrier   Circus hudsonius   Tail   Adult   Male  
  Northern Harrier   Circus hudsonius   Primaries   Adult   Male  
  Northern Harrier   Circus hudsonius   Secondaries   Adult   Male  
  Northern Harrier   Circus hudsonius   Secondaries   Unknown   Female  
  Northern Harrier   Circus hudsonius   Primaries   Unknown   Female  
  Northern Hawk Owl   Surnia ulula   Primaries   Adult   Female  
  Northern Hawk Owl   Surnia ulula   Secondaries   Adult   Female  
  Northern Hawk Owl   Surnia ulula   Tail   Adult   Female  
  Northern Mockingbird   Mimus polyglottos   Tail   Adult   Male   Black background
  Northern Mockingbird   Mimus polyglottos   Tail   Adult   Male   Blue background
  Northern Mockingbird   Mimus polyglottos   Primaries   Adult   Male   Black background
  Northern Mockingbird   Mimus polyglottos   Primaries   Adult   Male   Blue background
  Northern Mockingbird   Mimus polyglottos   Secondaries   Adult   Male  
  Northern Parula   Setophaga americana   Tail   Juvenile   Female  
  Northern Parula   Setophaga americana   Primaries   Juvenile   Female   Black background
  Northern Parula   Setophaga americana   Primaries   Juvenile   Female   Blue background
  Northern Parula   Setophaga americana   Secondaries   Juvenile   Female   Black background
  Northern Parula   Setophaga americana   Secondaries   Juvenile   Female   Blue background
  Northern Pintail   Anas acuta   Primaries   Adult   Male  
  Northern Pintail   Anas acuta   Secondaries   Adult   Male  
  Northern Pintail   Anas acuta   Tail   Adult   Male  
  Northern Pintail   Anas acuta   Primaries   Unknown   Female  
  Northern Pintail   Anas acuta   Secondaries   Unknown   Female  
  Northern Pintail   Anas acuta   Tail   Unknown   Female  
  Northern Pygmy-Owl   Glaucidium gnoma   Tail   Unknown   Male  
  Northern Pygmy-Owl   Glaucidium gnoma   Primaries   Unknown   Male  
  Northern Pygmy-Owl   Glaucidium gnoma   Primaries   Unknown   Male  
  Northern Pygmy-Owl   Glaucidium gnoma   Secondaries   Unknown   Male  
  Northern Pygmy-Owl   Glaucidium gnoma   Secondaries   Unknown   Male  
  Northern Saw-whet Owl   Aegolius acadicus   Primaries   Adult   Male  
  Northern Saw-whet Owl   Aegolius acadicus   Secondaries   Adult   Male  
  Northern Saw-whet Owl   Aegolius acadicus   Primaries   Juvenile   Unknown  
  Northern Saw-whet Owl   Aegolius acadicus   Secondaries   Juvenile   Unknown  
  Northern Saw-whet Owl   Aegolius acadicus   Tail   Adult   Male  
  Northern Saw-whet Owl   Aegolius acadicus   Tail   Juvenile   Unknown  
  Northern Shoveler   Spatula clypeata   Tail   Adult   Male  
  Northern Shoveler   Spatula clypeata   Primaries   Adult   Male  
  Northern Shoveler   Spatula clypeata   Secondaries   Adult   Male  
  Northern Shoveler   Spatula clypeata   Primaries   Adult   Male   Undersides of primaries showing tegmen
  Northern Shrike   Lanius borealis   Tail   Juvenile   Unknown   Black background
  Northern Shrike   Lanius borealis   Tail   Juvenile   Unknown   Blue background
  Northern Shrike   Lanius borealis   Primaries   Juvenile   Unknown  
  Northern Shrike   Lanius borealis   Secondaries   Juvenile   Unknown  
  Northern Waterthrush   Parkesia noveboracensis   Tail   Juvenile   Male  
  Northern Waterthrush   Parkesia noveboracensis   Primaries   Juvenile   Male  
  Northern Waterthrush   Parkesia noveboracensis   Secondaries   Juvenile   Male  
  Nuttalls Woodpecker   Dryobates nuttallii   Tail   Adult   Male  
  Nuttalls Woodpecker   Dryobates nuttallii   Primaries   Adult   Male  
  Nuttalls Woodpecker   Dryobates nuttallii   Secondaries   Adult   Male  
  Orange-crowned Warbler   Oreothlypis celata   Tail   Adult   Male  
  Orange-crowned Warbler   Oreothlypis celata   Primaries   Adult   Male  
  Orange-crowned Warbler   Oreothlypis celata   Secondaries   Adult   Male  
  Osprey   Pandion haliaetus   Primaries   Adult   Unknown   Blue background
  Osprey   Pandion haliaetus   Secondaries   Adult   Unknown   Blue background
  Osprey   Pandion haliaetus   Tail   Unknown   Female  
  Osprey   Pandion haliaetus   Tail   Adult   Unknown  
  Osprey   Pandion haliaetus   Primaries   Adult   Unknown   Black background
  Osprey   Pandion haliaetus   Secondaries   Adult   Unknown   Black background
  Osprey   Pandion haliaetus   Primaries   Juvenile   Female   Black background
  Osprey   Pandion haliaetus   Primaries   Juvenile   Female   Blue background
  Osprey   Pandion haliaetus   Secondaries   Juvenile   Female  
  Ovenbird   Seiurus aurocapillus   Tail   Adult   Female  
  Ovenbird   Seiurus aurocapillus   Primaries   Adult   Female  
  Ovenbird   Seiurus aurocapillus   Secondaries   Adult   Female  
  Pacific Golden-Plover   Pluvialis fulva   Tail   Adult   Female   Tail in molt. Outer worn juv, inner fresh adult
  Pacific Golden-Plover   Pluvialis fulva   Primaries   Adult   Female  
  Pacific Golden-Plover   Pluvialis fulva   Secondaries   Adult   Female   Black background
  Pacific Golden-Plover   Pluvialis fulva   Secondaries   Adult   Female   Blue background
  Pacific Golden-Plover   Pluvialis fulva   Tail   Adult   Male   Breeding plumage
  Pacific Golden-Plover   Pluvialis fulva   Primaries   Adult   Male   Breeding plumage
  Pacific Golden-Plover   Pluvialis fulva   Secondaries   Adult   Male   Breeding plumage
  Pacific Loon   Gavia pacifica   Tail   Juvenile   Unknown  
  Pacific Loon   Gavia pacifica   Primaries   Juvenile   Unknown  
  Pacific Loon   Gavia pacifica   Secondaries   Juvenile   Unknown  
  Pacific Wren   Troglodytes pacificus   Tail   Adult   Female  
  Pacific Wren   Troglodytes pacificus   Primaries   Adult   Female  
  Pacific Wren   Troglodytes pacificus   Secondaries   Adult   Female  
  Pacific-slope Flycatcher   Empidonax difficilis   Tail   Juvenile   Unknown  
  Pacific-slope Flycatcher   Empidonax difficilis   Primaries   Juvenile   Unknown  
  Pacific-slope Flycatcher   Empidonax difficilis   Secondaries   Juvenile   Unknown  
  Painted Bunting   Passerina ciris   Tail   Adult   Male   Black background
  Painted Bunting   Passerina ciris   Tail   Adult   Male   Blue background
  Painted Bunting   Passerina ciris   Primaries   Adult   Male   Black background
  Painted Bunting   Passerina ciris   Primaries   Adult   Male   Blue background
  Painted Bunting   Passerina ciris   Secondaries   Adult   Male   Black background
  Painted Bunting   Passerina ciris   Secondaries   Adult   Male   Blue background
  Palm Warbler   Setophaga palmarum   Tail   Juvenile   Unknown   Yellow Subsp., Black background
  Palm Warbler   Setophaga palmarum   Tail   Juvenile   Unknown   Yellow Subsp., Blue background
  Palm Warbler   Setophaga palmarum   Primaries   Juvenile   Unknown   Yellow subsp.
  Palm Warbler   Setophaga palmarum   Secondaries   Juvenile   Unknown   Yellow Subsp.
  Pectoral Sandpiper   Calidris melanotos   Tail   Adult   Male  
  Pectoral Sandpiper   Calidris melanotos   Primaries   Adult   Male  
  Pectoral Sandpiper   Calidris melanotos   Secondaries   Adult   Male  
  Pelagic Cormorant   Phalacrocorax pelagicus   Tail   Adult   Male   Black background
  Pelagic Cormorant   Phalacrocorax pelagicus   Tail   Adult   Male   Blue background
  Pelagic Cormorant   Phalacrocorax pelagicus   Primaries   Adult   Male   Black background
  Pelagic Cormorant   Phalacrocorax pelagicus   Primaries   Adult   Male   Blue background
  Pelagic Cormorant   Phalacrocorax pelagicus   Secondaries   Adult   Male   Black background
  Pelagic Cormorant   Phalacrocorax pelagicus   Secondaries   Adult   Male   Blue background
  Peregrine Falcon   Falco peregrinus   Primaries   Juvenile   Male  
  Peregrine Falcon   Falco peregrinus   Secondaries   Juvenile   Male  
  Peregrine Falcon   Falco peregrinus   Tail   Adult   Female  
  Peregrine Falcon   Falco peregrinus   Primaries   Adult   Female  
  Peregrine Falcon   Falco peregrinus   Secondaries   Adult   Female  
  Peregrine Falcon   Falco peregrinus   Tail   Juvenile   Male  
  Peregrine Falcon   Falco peregrinus   Tail   Adult   Male  
  Peregrine Falcon   Falco peregrinus   Primaries   Adult   Male  
  Peregrine Falcon   Falco peregrinus   Secondaries   Adult   Male   Black background
  Peregrine Falcon   Falco peregrinus   Secondaries   Adult   Male   Blue background
  Pied-billed Grebe   Podilymbus podiceps   Primaries   Adult   Female  
  Pied-billed Grebe   Podilymbus podiceps   Secondaries   Adult   Female  
  Pigeon Guillemot   Cepphus columba   Tail   Adult   Female   Breeding plumage
  Pigeon Guillemot   Cepphus columba   Primaries   Adult   Female   Breeding plumage
  Pigeon Guillemot   Cepphus columba   Secondaries   Adult   Female   Breeding plumage
  Pileated Woodpecker   Dryocopus pileatus   Tail   Adult   Female  
  Pileated Woodpecker   Dryocopus pileatus   Primaries   Adult   Female  
  Pileated Woodpecker   Dryocopus pileatus   Secondaries   Adult   Female  
  Pine Grosbeak   Pinicola enucleator   Tail   Adult   Male  
  Pine Grosbeak   Pinicola enucleator   Primaries   Adult   Male  
  Pine Grosbeak   Pinicola enucleator   Secondaries   Adult   Male  
  Pine siskin   Spinus pinus   Tail   Adult   Female  
  Pine Siskin   Spinus pinus   Primaries   Adult   Female  
  Pine Siskin   Spinus pinus   Secondaries   Adult   Female  
  Piping Plover   Charadrius melodus   Tail   Adult   Female   Breeding plumage
  Piping Plover   Charadrius melodus   Primaries   Adult   Female   Breeding plumage
  Piping Plover   Charadrius melodus   Secondaries   Adult   Female   Breeding plumage
  Plain Chachalaca   Ortalis vetula   Tail   Adult   Male   Captive (wild born)
  Plain Chachalaca   Ortalis vetula   Primaries   Adult   Male   Captive (wild born)
  Plain Chachalaca   Ortalis vetula   Secondaries   Adult   Male   Captive (wild born)
  Pomarine Jaeger   Stercorarius pomarinus   Tail   Adult   Female  
  Pomarine Jaeger   Stercorarius pomarinus   Primaries   Adult   Female  
  Pomarine Jaeger   Stercorarius pomarinus   Secondaries   Adult   Female  
  Prairie Falcon   Falco mexicanus   Primaries   Juvenile   Female  
  Prairie Falcon   Falco mexicanus   Secondaries   Juvenile   Female  
  Prairie Falcon   Falco mexicanus   Tail   Juvenile   Female  
  Prairie Warbler   Setophaga discolor   Tail   Adult   Male  
  Prairie Warbler   Setophaga discolor   Primaries   Adult   Male  
  Prairie Warbler   Setophaga discolor   Secondaries   Adult   Male  
  Prothonotary Warbler   Protonotaria citrea   Tail   Adult   Male  
  Prothonotary Warbler   Protonotaria citrea   Primaries   Adult   Male   Black background
  Prothonotary Warbler   Protonotaria citrea   Primaries   Adult   Male   Blue background
  Prothonotary Warbler   Protonotaria citrea   Secondaries   Adult   Male  
  Purple Finch   Haemorhous purpureus   Tail   Second year   Male  
  Purple Finch   Haemorhous purpureus   Primaries   Second year   Male  
  Purple Finch   Haemorhous purpureus   Secondaries   Second year   Male  
  Purple Finch   Haemorhous purpureus   Tail   Adult   Male  
  Purple Finch   Haemorhous purpureus   Primaries   Adult   Male  
  Purple Finch   Haemorhous purpureus   Secondaries   Adult   Male  
  Purple Finch   Haemorhous purpureus   Tail   Adult   Female  
  Purple Finch   Haemorhous purpureus   Primaries   Adult   Female  
  Purple Finch   Haemorhous purpureus   Secondaries   Adult   Female  
  Purple Martin   Progne subis   Tail   Juvenile   Unknown  
  Purple Martin   Progne subis   Tail   Adult   Male  
  Purple Martin   Progne subis   Primaries   Adult   Male  
  Purple Martin   Progne subis   Secondaries   Adult   Male  
  Red Crossbill   Loxia curvirostra   Tail   Adult   Male  
  Red Crossbill   Loxia curvirostra   Tail   Juvenile   Male  
  Red Crossbill   Loxia curvirostra   Primaries   Juvenile   Male  
  Red Crossbill   Loxia curvirostra   Secondaries   Juvenile   Male  
  Red Phalarope   Phalaropus fulicaria   Tail   Unknown   Female  
  Red Phalarope   Phalaropus fulicaria   Primaries   Unknown   Female   Black background
  Red Phalarope   Phalaropus fulicaria   Primaries   Unknown   Female   Blue background
  Red Phalarope   Phalaropus fulicaria   Secondaries   Unknown   Female   Black background
  Red Phalarope   Phalaropus fulicaria   Secondaries   Unknown   Female   Blue background
  Red-bellied Woodpecker   Melanerpes carolinus   Tail   Adult   Male  
  Red-bellied Woodpecker   Melanerpes carolinus   Primaries   Adult   Male  
  Red-bellied Woodpecker   Melanerpes carolinus   Secondaries   Adult   Male  
  Red-breasted Merganser   Mergus serrator   Primaries   Adult   Male   Black background
  Red-breasted Merganser   Mergus serrator   Primaries   Adult   Male   Blue background
  Red-breasted Merganser   Mergus serrator   Secondaries   Adult   Male   Black background
  Red-breasted Merganser   Mergus serrator   Secondaries   Adult   Male   Blue background
  Red-breasted Merganser   Mergus serrator   Tail   Adult   Male  
  Red-breasted Nuthatch   Sitta canadensis   Tail   Adult   Female  
  Red-breasted Nuthatch   Sitta canadensis   Primaries   Adult   Female  
  Red-breasted Nuthatch   Sitta canadensis   Secondaries   Adult   Female  
  Red-breasted Sapsucker   Sphyrapicus ruber   Tail   Adult   Unknown  
  Red-breasted Sapsucker   Sphyrapicus ruber   Primaries   Adult   Unknown  
  Red-breasted Sapsucker   Sphyrapicus ruber   Secondaries   Adult   Unknown  
  Red-cockaded Woodpecker   Dryobates borealis   Primaries   Adult   Female  
  Red-cockaded Woodpecker   Dryobates borealis   Secondaries   Adult   Female  
  Red-cockaded Woodpecker   Dryobates borealis   Tail   Adult   Female  
  Red-crowned Parrot   Amazona viridigenalis   Tail   Adult   Male  
  Red-crowned Parrot   Amazona viridigenalis   Primaries   Adult   Male  
  Red-crowned Parrot   Amazona viridigenalis   Secondaries   Adult   Male  
  Red-eyed Vireo   Vireo olivaceus   Primaries   Adult   Male  
  Red-eyed Vireo   Vireo olivaceus   Tail   Adult   Male  
  Red-eyed Vireo   Vireo olivaceus   Secondaries   Adult   Male  
  Red-footed Booby   Sula sula   Tail   Adult   Male  
  Red-footed Booby   Sula sula   Primaries   Adult   Male   black background
  Red-footed Booby   Sula sula   Primaries   Adult   Male   blue background
  Red-footed Booby   Sula sula   Secondaries   Adult   Male   black background
  Red-footed Booby   Sula sula   Secondaries   Adult   Male   blue background
  Red-headed Woodpecker   Melanerpes erythrocephalus   Primaries   Juvenile   Female  
  Red-headed Woodpecker   Melanerpes erythrocephalus   Secondaries   Juvenile   Female  
  Red-headed Woodpecker   Melanerpes erythrocephalus   Primaries   Adult   Unknown  
  Red-headed Woodpecker   Melanerpes erythrocephalus   Secondaries   Adult   Unknown  
  Red-headed Woodpecker   Melanerpes erythrocephalus   Tail   Adult   Unknown  
  Red-headed Woodpecker   Melanerpes erythrocephalus   Tail   Juvenile   Female  
  Red-naped Sapsucker   Sphyrapicus nuchalis   Tail   Adult   Male  
  Red-naped Sapsucker   Sphyrapicus nuchalis   Primaries   Adult   Male  
  Red-naped Sapsucker   Sphyrapicus nuchalis   Secondaries   Adult   Male  
  Red-necked Grebe   Podiceps grisegena   Primaries   Adult   Male  
  Red-necked Grebe   Podiceps grisegena   Secondaries   Adult   Male  
  Red-necked Phalarope   Phalaropus lobatus   Tail   Adult   Male  
  Red-necked Phalarope   Phalaropus lobatus   Primaries   Adult   Male  
  Red-necked Phalarope   Phalaropus lobatus   Secondaries   Adult   Male   Black background
  Red-necked Phalarope   Phalaropus lobatus   Secondaries   Adult   Male   Blue background
  Red-necked Phalarope   Phalaropus lobatus   Tail   Juvenile   Unknown   Black background
  Red-necked Phalarope   Phalaropus lobatus   Tail   Juvenile   Unknown   Blue background
  Red-necked Phalarope   Phalaropus lobatus   Primaries   Juvenile   Unknown   Black background
  Red-necked Phalarope   Phalaropus lobatus   Primaries   Juvenile   Unknown   Blue background
  Red-necked Phalarope   Phalaropus lobatus   Secondaries   Juvenile   Unknown   Black background
  Red-necked Phalarope   Phalaropus lobatus   Secondaries   Juvenile   Unknown   Blue background
  Red-shouldered Hawk   Buteo lineatus   Primaries   Adult   Unknown  
  Red-shouldered Hawk   Buteo lineatus   Secondaries   Adult   Unknown  
  Red-shouldered Hawk   Buteo lineatus   Tail   Juvenile   Female   (lineatus or alleni) Eastern
  Red-shouldered Hawk   Buteo lineatus   Primaries   Juvenile   Female   (lineatus or alleni) Eastern
  Red-shouldered Hawk   Buteo lineatus   Secondaries   Juvenile   Female   (lineatus or alleni) Eastern black background
  Red-shouldered Hawk   Buteo lineatus   Secondaries   Juvenile   Female   (lineatus or alleni) Eastern blue background
  Red-shouldered Hawk   Buteo lineatus   Tail   Juvenile   Female  
  Red-shouldered Hawk   Buteo lineatus   Tail   Adult   Unknown  
  Red-shouldered Hawk   Buteo lineatus   Primaries   Juvenile   Female   Black background
  Red-shouldered Hawk   Buteo lineatus   Primaries   Juvenile   Female   Blue background
  Red-shouldered Hawk   Buteo lineatus   Secondaries   Juvenile   Female   Black background
  Red-shouldered Hawk   Buteo lineatus   Secondaries   Juvenile   Female   Blue background
  Red-tailed Hawk   Buteo jamaicensis   Tail   Juvenile   Unknown   Kriders - black background
  Red-tailed Hawk   Buteo jamaicensis   Tail   Juvenile   Unknown   Kriders - blue background
  Red-tailed Hawk   Buteo jamaicensis   Primaries   Juvenile   Unknown   Kriders - black background
  Red-tailed Hawk   Buteo jamaicensis   Primaries   Juvenile   Unknown   Kriders - blue background
  Red-tailed Hawk   Buteo jamaicensis   Secondaries   Juvenile   Unknown   Kriders - black background
  Red-tailed Hawk   Buteo jamaicensis   Secondaries   Juvenile   Unknown   Kriders - blue background
  Red-tailed Hawk   Buteo jamaicensis   Primaries   Adult   Male   Black background
  Red-tailed Hawk   Buteo jamaicensis   Primaries   Adult   Male   Blue background
  Red-tailed Hawk   Buteo jamaicensis   Secondaries   Adult   Male   mix of old and new feathers
  Red-tailed Hawk   Buteo jamaicensis   Primaries   Juvenile   Male   Black background
  Red-tailed Hawk   Buteo jamaicensis   Primaries   Juvenile   Male   Blue background
  Red-tailed Hawk   Buteo jamaicensis   Secondaries   Juvenile   Male  
  Red-tailed Hawk   Buteo jamaicensis   Tail   Adult   Male  
  Red-tailed Hawk   Buteo jamaicensis   Tail   Unknown   Unknown   Various adult rectrix patterns
  Red-tailed Hawk   Buteo jamaicensis   Tail   Unknown   Unknown   Assorted Harlans-type rectrices
  Red-tailed Hawk   Buteo jamaicensis   Tail   Juvenile   Male  
  Red-tailed Hawk   Buteo jamaicensis   Tail   Adult   Unknown   Subspecies Harlani
  Red-tailed Hawk   Buteo jamaicensis   Tail   Juvenile   Unknown   Subspecies Harlani
  Red-tailed Hawk   Buteo jamaicensis   Primaries   Adult   Male   darker feathers
  Red-tailed Hawk   Buteo jamaicensis   Secondaries   Adult   Male   darker feathers--black background
  Red-tailed Hawk   Buteo jamaicensis   Secondaries   Adult   Male   darker feathers--blue background
  Red-winged Blackbird   Agelaius phoeniceus   Tail   Adult   Female  
  Red-winged Blackbird   Agelaius phoeniceus   Secondaries   Adult   Female   Black background
  Red-winged Blackbird   Agelaius phoeniceus   Secondaries   Adult   Female   Blue background
  Red-winged Blackbird   Agelaius phoeniceus   Primaries   Adult   Female  
  Red-winged Blackbird   Agelaius phoeniceus   Tail   Adult   Male  
  Red-winged Blackbird   Agelaius phoeniceus   Primaries   Adult   Male  
  Red-winged Blackbird   Agelaius phoeniceus   Secondaries   Adult   Male  
  Redhead   Aythya americana   Primaries   Adult   Male   Black background
  Redhead   Aythya americana   Primaries   Adult   Male   Blue background
  Redhead   Aythya americana   Secondaries   Adult   Male  
  Redhead   Aythya americana   Tail   Adult   Female  
  Redhead   Aythya americana   Primaries   Adult   Female   Black background
  Redhead   Aythya americana   Primaries   Adult   Female   Blue background
  Redhead   Aythya americana   Secondaries   Adult   Female   Black background
  Redhead   Aythya americana   Secondaries   Adult   Female   Blue background
  Rhinoceros Auklet   Cerorhina monocerata   Tail   Adult   Unknown  
  Rhinoceros Auklet   Cerorhina monocerata   Primaries   Adult   Unknown  
  Rhinoceros Auklet   Cerorhina monocerata   Secondaries   Adult   Unknown  
  Ridgeways Rail   Rallus obsoletus   Primaries   Adult   Female  
  Ridgeways Rail   Rallus obsoletus   Tail   Adult   Female  
  Ridgeways Rail   Rallus obsoletus   Secondaries   Adult   Female  
  Ring-billed Gull   Larus delawarensis   Tail   Juvenile   Male   Second winter
  Ring-billed Gull   Larus delawarensis   Primaries   Juvenile   Male   Second winter
  Ring-billed Gull   Larus delawarensis   Secondaries   Juvenile   Male   Second winter
  Ring-billed Gull   Larus delawarensis   Tail   Juvenile   Male  
  Ring-billed Gull   Larus delawarensis   Primaries   Juvenile   Male   Blue background
  Ring-billed Gull   Larus delawarensis   Secondaries   Juvenile   Male  
  Ring-billed Gull   Larus delawarensis   Tail   Juvenile   Male   Black background
  Ring-billed Gull   Larus delawarensis   Primaries   Juvenile   Male   Blue background
  Ring-billed Gull   Larus delawarensis   Secondaries   Juvenile   Male  
  Ring-billed Gull   Larus delawarensis   Tail   Juvenile   Male   Blue background
  Ring-billed Gull   Larus delawarensis   Tail   Adult   Female  
  Ring-billed Gull   Larus delawarensis   Primaries   Adult   Female   Black background
  Ring-billed Gull   Larus delawarensis   Primaries   Adult   Female   Blue background
  Ring-billed Gull   Larus delawarensis   Secondaries   Adult   Female  
  Ring-necked Duck   Aythya collaris   Primaries   Adult   Female  
  Ring-necked Duck   Aythya collaris   Tail   Adult   Female  
  Ring-necked Duck   Aythya collaris   Secondaries   Adult   Female  
  Ring-necked Duck   Aythya collaris   Primaries   Adult   Male  
  Ring-necked Duck   Aythya collaris   Tail   Adult   Male  
  Ring-necked Duck   Aythya collaris   Secondaries   Adult   Male  
  Ring-necked Pheasant   Phasianus colchicus   Tail   Adult   Female  
  Ring-necked Pheasant   Phasianus colchicus   Tail   Adult   Male  
  Ring-necked Pheasant   Phasianus colchicus   Primaries   Adult   Female  
  Ring-necked Pheasant   Phasianus colchicus   Secondaries   Adult   Female  
  Ring-necked Pheasant   Phasianus colchicus   Primaries   Adult   Male  
  Ring-necked Pheasant   Phasianus colchicus   Secondaries   Adult   Male  
  Rock Pigeon   Columba livia   Tail   Adult   Female  
  Rock Pigeon   Columba livia   Wing   Adult   Female  
  Rock Ptarmigan   Lagopus muta   Primaries   Adult   Female   Non-breeding plumage (black background)
  Rock Ptarmigan   Lagopus muta   Primaries   Adult   Female   Non-breeding plumage (blue background)
  Rock Ptarmigan   Lagopus muta   Secondaries   Adult   Female   Non-breeding Plumage (black background)
  Rock Ptarmigan   Lagopus muta   Secondaries   Adult   Female   Non-breeding plumage (blue background)
  Rock Ptarmigan   Lagopus muta   Tail   Adult   Female   Non-breeding Plumage (black background)
  Rock Ptarmigan   Lagopus muta   Tail   Adult   Female   Non-breeding Plumage (blue background)
  Rose-breasted Grosbeak   Pheucticus ludovicianus   Tail   Adult   Female   Second year
  Rose-breasted Grosbeak   Pheucticus ludovicianus   Primaries   Adult   Female   Second year
  Rose-breasted Grosbeak   Pheucticus ludovicianus   Secondaries   Adult   Female   Second year
  Rose-breasted Grosbeak   Pheucticus ludovicianus   Tail   Adult   Male  
  Rose-breasted Grosbeak   Pheucticus ludovicianus   Primaries   Adult   Male  
  Rose-breasted Grosbeak   Pheucticus ludovicianus   Secondaries   Adult   Male  
  Roseate Spoonbill   Platalea ajaja   Tail   Adult   Male   Captive born
  Roseate Spoonbill   Platalea ajaja   Wing   Adult   Male   Captive born
  Roseate Tern   Sterna dougallii   Tail   Adult   Unknown  
  Roseate Tern   Sterna dougallii   Primaries   Adult   Unknown  
  Roseate Tern   Sterna dougallii   Secondaries   Adult   Unknown  
  Ross Goose   Anser rossii   Tail   Adult   Male  
  Ross Goose   Anser rossii   Primaries   Adult   Male  
  Ross Goose   Anser rossii   Secondaries   Adult   Male  
  Rough-legged Hawk   Buteo lagopus   Primaries   Adult   Male   Light morph
  Rough-legged Hawk   Buteo lagopus   Tail   Adult   Male   Light morph
  Rough-legged Hawk   Buteo lagopus   Tail   Adult   Female   Dark morph
  Rough-legged Hawk   Buteo lagopus   Tail   Juvenile   Unknown   Light morph--black background
  Rough-legged Hawk   Buteo lagopus   Secondaries   Adult   Male   Light morph--black background
  Rough-legged Hawk   Buteo lagopus   Secondaries   Adult   Male   Light morph--blue background
  Rough-legged Hawk   Buteo lagopus   Primaries   Adult   Female   Dark morph--black background
  Rough-legged Hawk   Buteo lagopus   Primaries   Adult   Female   Dark morph--blue background
  Rough-legged Hawk   Buteo lagopus   Secondaries   Adult   Female   Dark morph
  Rough-legged Hawk   Buteo lagopus   Tail   Adult   Male   Dark morph--black background
  Rough-legged Hawk   Buteo lagopus   Tail   Adult   Male   Dark morph--blue background
  Rough-legged Hawk   Buteo lagopus   Primaries   Adult   Male   Dark morph--black background
  Rough-legged Hawk   Buteo lagopus   Primaries   Adult   Male   Dark morph--blue background
  Rough-legged Hawk   Buteo lagopus   Secondaries   Adult   Male   Dark morph--black background
  Rough-legged Hawk   Buteo lagopus   Secondaries   Adult   Male   Dark morph--blue background
  Rough-legged Hawk   Buteo lagopus   Tail   Juvenile   Unknown   Light morph--blue background
  Royal Tern   Thalasseus maximus   Tail   Adult   Female   Nonbreeding plumage
  Royal Tern   Thalasseus maximus   Primaries   Adult   Female   Nonbreeding plumage
  Royal Tern   Thalasseus maximus   Secondaries   Adult   Female   Nonbreeding Plumage
  Ruby-crowned Kinglet   Regulus calendula   Tail   Unknown   Male  
  Ruby-crowned Kinglet   Regulus calendula   Primaries   Unknown   Male  
  Ruby-crowned Kinglet   Regulus calendula   Secondaries   Unknown   Male  
  Ruby-throated Hummingbird   Archilochus colubris   Tail   Adult   Female  
  Ruby-throated Hummingbird   Archilochus colubris   Primaries   Adult   Female  
  Ruby-throated Hummingbird   Archilochus colubris   Secondaries   Adult   Female  
  Ruddy Duck   Oxyura jamaicensis   Primaries   Unknown   Female  
  Ruddy Duck   Oxyura jamaicensis   Secondaries   Unknown   Female  
  Ruddy Duck   Oxyura jamaicensis   Tail   Unknown   Female  
  Ruddy Turnstone   Arenaria interpres   Tail   Juvenile   Female  
  Ruddy Turnstone   Arenaria interpres   Primaries   Juvenile   Female  
  Ruddy Turnstone   Arenaria interpres   Secondaries   Juvenile   Female  
  Ruffed Grouse   Bonasa umbellus   Tail   Adult   Male   Gray Morph
  Ruffed Grouse   Bonasa umbellus   Wing   Adult   Male   Gray Morph
  Ruffed Grouse   Bonasa umbellus   Wing   Adult   Male   Gray Morph--Ventral View
  Ruffed Grouse   Bonasa umbellus   Tail   Adult   Female   Red Morph
  Rufous Hummingbird   Selasphorus rufus   Tail   Adult   Male   Black background
  Rufous Hummingbird   Selasphorus rufus   Tail   Adult   Male   Blue background
  Rufous Hummingbird   Selasphorus rufus   Primaries   Adult   Male  
  Rufous Hummingbird   Selasphorus rufus   Secondaries   Adult   Male  
  Rusty Blackbird   Euphagus carolinus   Tail   Adult   Male   Black background
  Rusty Blackbird   Euphagus carolinus   Tail   Adult   Male   Blue background
  Rusty Blackbird   Euphagus carolinus   Primaries   Adult   Male  
  Rusty Blackbird   Euphagus carolinus   Secondaries   Adult   Male   Black background
  Rusty Blackbird   Euphagus carolinus   Secondaries   Adult   Male   Blue background
  Sage Thrasher   Oreoscoptes montanus   Tail   Adult   Unknown  
  Sage Thrasher   Oreoscoptes montanus   Primaries   Adult   Unknown  
  Sage Thrasher   Oreoscoptes montanus   Secondaries   Adult   Unknown  
  Sanderling   Calidris alba   Tail   Juvenile   Unknown   "checkered" plumage
  Sanderling   Calidris alba   Primaries   Juvenile   Unknown   "checkered" plumage
  Sanderling   Calidris alba   Secondaries   Juvenile   Unknown   "checkered" plumage
  Sandhill Crane   Grus canadensis   Primaries   Adult   Male  
  Sandhill Crane   Grus canadensis   Secondaries   Adult   Male  
  Sandhill Crane   Grus canadensis   Tail   Adult   Male  
  Sandwich Tern   Thalasseus sandvicenis   Tail   Adult   Female  
  Sandwich Tern   Thalasseus sandvicenis   Primaries   Adult   Female  
  Sandwich Tern   Thalasseus sandvicenis   Secondaries   Adult   Female  
  Savannah Sparrow   Passerculus sandwichensis   Tail   Adult   Female  
  Savannah Sparrow   Passerculus sandwichensis   Primaries   Adult   Female  
  Savannah Sparrow   Passerculus sandwichensis   Secondaries   Adult   Female  
  Says Phoebe   Sayornis saya   Tail   Unknown   Female  
  Says Phoebe   Sayornis saya   Primaries   Unknown   Female   Black background
  Says Phoebe   Sayornis saya   Primaries   Unknown   Female   Blue background
  Says Phoebe   Sayornis saya   Secondaries   Unknown   Female   Black background
  Says Phoebe   Sayornis saya   Secondaries   Unknown   Female   Blue background
  Scaled Quail   Callipepla squamata   Tail   Adult   Male  
  Scaled Quail   Callipepla squamata   Primaries   Adult   Male  
  Scaled Quail   Callipepla squamata   Secondaries   Adult   Male  
  Scarlet Tanager   Piranga olivacea   Tail   Juvenile   Female  
  Scarlet Tanager   Piranga olivacea   Primaries   Juvenile   Female  
  Scarlet Tanager   Piranga olivacea   Primaries   Adult   Male  
  Scarlet Tanager   Piranga olivacea   Tail   Adult   Male  
  Scarlet Tanager   Piranga olivacea   Secondaries   Adult   Male  
  Scarlet Tanager   Piranga olivacea   Secondaries   Juvenile   Female  
  Scissor-tailed Flycatcher   Tyrannus forficatus   Primaries   Adult   Female  
  Scissor-tailed Flycatcher   Tyrannus forficatus   Secondaries   Adult   Female  
  Scissor-tailed Flycatcher   Tyrannus forficatus   Tail   Adult   Female  
  Sharp-shinned Hawk   Accipiter striatus   Primaries   Adult   Male  
  Sharp-shinned Hawk   Accipiter striatus   Secondaries   Adult   Male  
  Sharp-shinned Hawk   Accipiter striatus   Primaries   Juvenile   Female  
  Sharp-shinned Hawk   Accipiter striatus   Secondaries   Juvenile   Female  
  Sharp-shinned Hawk   Accipiter striatus   Tail   Adult   Male  
  Sharp-shinned Hawk   Accipiter striatus   Tail   Juvenile   Female  
  Sharp-tailed Grouse   Tympanuchus phasianellus   Tail   Adult   Female   First Year
  Sharp-tailed Grouse   Tympanuchus phasianellus   Wing   Adult   Female   First Year
  Shiny Cowbird   Molothrus bonariensis   Tail   Adult   Male  
  Shiny Cowbird   Molothrus bonariensis   Primaries   Adult   Male  
  Shiny Cowbird   Molothrus bonariensis   Secondaries   Adult   Male  
  Shiny Cowbird   Molothrus bonariensis   Tail   Adult   Female  
  Shiny Cowbird   Molothrus bonariensis   Primaries   Adult   Female  
  Shiny Cowbird   Molothrus bonariensis   Secondaries   Adult   Female  
  Short-billed Dowitcher   Limnodromus griseus   Tail   Juvenile   Unknown   Non-breeding plumage
  Short-billed Dowitcher   Limnodromus griseus   Primaries   Juvenile   Unknown   Non-breeding plumage
  Short-billed Dowitcher   Limnodromus griseus   Secondaries   Juvenile   Unknown   Non-breeding plumage
  Short-eared Owl   Asio flammeus   Primaries   Adult   Unknown   black background
  Short-eared Owl   Asio flammeus   Primaries   Adult   Unknown   blue background
  Short-eared Owl   Asio flammeus   Secondaries   Adult   Unknown  
  Short-eared Owl   Asio flammeus   Tail   Adult   Unknown  
  Short-tailed Shearwater   Ardenna tenuirostris   Tail   Unknown   Female  
  Short-tailed Shearwater   Ardenna tenuirostris   Primaries   Unknown   Female  
  Short-tailed Shearwater   Ardenna tenuirostris   Secondaries   Unknown   Female  
  Snail Kite   Rostrhamnus sociabilis   Tail   Juvenile   Female  
  Snail Kite   Rostrhamnus sociabilis   Primaries   Juvenile   Female  
  Snail Kite   Rostrhamnus sociabilis   Secondaries   Juvenile   Female  
  Snow Bunting   Plectrophenax nivalis   Tail   Adult   Female   Black background
  Snow Bunting   Plectrophenax nivalis   Tail   Adult   Female   Blue background
  Snow Bunting   Plectrophenax nivalis   Primaries   Adult   Female   Black background
  Snow Bunting   Plectrophenax nivalis   Primaries   Adult   Female   Blue background
  Snow Bunting   Plectrophenax nivalis   Secondaries   Adult   Female   Black background
  Snow Bunting   Plectrophenax nivalis   Secondaries   Adult   Female   Blue background
  Snow Goose   Anser caerulescens   Primaries   Adult   Unknown   Blue Morph
  Snow Goose   Anser caerulescens   Secondaries   Adult   Unknown   Blue Morph
  Snow Goose   Anser caerulescens   Tail   Adult   Unknown   Blue Morph
  Snow Goose   Anser caerulescens   Primaries   Adult   Female  
  Snow Goose   Anser caerulescens   Secondaries   Adult   Female  
  Snow Goose   Anser caerulescens   Tail   Adult   Female  
  Snowy Egret   Egretta thula   Tail   Adult   Male  
  Snowy Egret   Egretta thula   Primaries   Adult   Male  
  Snowy Egret   Egretta thula   Secondaries   Adult   Male  
  Snowy Owl   Bubo scandiacus   Tail   Adult   Male  
  Snowy Owl   Bubo scandiacus   Primaries   Adult   Male  
  Snowy Owl   Bubo scandiacus   Secondaries   Adult   Male  
  Snowy Owl   Bubo scandiacus   Tail   Adult   Female  
  Snowy Owl   Bubo scandiacus   Primaries   Adult   Female   Black background
  Snowy Owl   Bubo scandiacus   Primaries   Adult   Female   Blue background
  Snowy Owl   Bubo scandiacus   Secondaries   Adult   Female   Black background
  Snowy Owl   Bubo scandiacus   Secondaries   Adult   Female   Blue background
  Song Sparrow   Melospiza melodia   Tail   Adult   Male  
  Song sparrow   Melospiza melodia   Primaries   Adult   Male  
  Song Sparrow   Melospiza melodia   Secondaries   Adult   Male  
  Sooty Grouse   Dendragapus fuliginosus   Tail   Juvenile   Male  
  Sooty Grouse   Dendragapus fuliginosus   Tail   Juvenile   Female   Black background
  Sooty Grouse   Dendragapus fuliginosus   Tail   Juvenile   Female   Blue background
  Sooty Grouse   Dendragapus fuliginosus   Primaries   Juvenile   Female  
  Sooty Grouse   Dendragapus fuliginosus   Secondaries   Juvenile   Female  
  Sooty Grouse   Dendragapus fuliginosus   Tail   Adult   Male   Black background
  Sooty Grouse   Dendragapus fuliginosus   Tail   Adult   Male   Blue background
  Sooty Grouse   Dendragapus fuliginosus   Primaries   Adult   Male  
  Sooty Grouse   Dendragapus fuliginosus   Secondaries   Adult   Male  
  Sooty Shearwater   Ardenna grisea   Tail   Unknown   Female  
  Sooty Shearwater   Ardenna grisea   Primaries   Unknown   Female  
  Sooty Shearwater   Ardenna grisea   Secondaries   Unknown   Female  
  Sooty Tern   Onychoprion fuscatus   Primaries   Adult   Male   Blue background
  Sooty Tern   Onychoprion fuscatus   Tail   Adult   Male   Black background
  Sooty Tern   Onychoprion fuscatus   Tail   Adult   Male   Blue background
  Sooty Tern   Onychoprion fuscatus   Secondaries   Adult   Male  
  Sooty Tern   Onychoprion fuscatus   Primaries   Adult   Male   Black background
  Sora   Porzana carolina   Primaries   Juvenile   Male  
  Sora   Porzana carolina   Tail   Juvenile   Male  
  Sora   Porzana carolina   Secondaries   Juvenile   Male  
  Spectacled Eider   Somateria fischeri   Primaries   Adult   Female  
  Spectacled Eider   Somateria fischeri   Secondaries   Adult   Female  
  Spectacled Eider   Somateria fischeri   Tail   Adult   Female  
  Spectacled Eider   Somateria fischeri   Primaries   Adult   Male  
  Spectacled Eider   Somateria fischeri   Secondaries   Adult   Male  
  Spectacled Eider   Somateria fischeri   Tail   Adult   Male  
  Spotted Dove   Streptopelia chinensis   Tail   Adult   Male  
  Spotted Dove   Streptopelia chinensis   Wing   Adult   Male  
  Spotted Owl   Strix occidentalis   Tail   Adult   Male  
  Spotted Owl   Strix occidentalis   Primaries   Adult   Male  
  Spotted Owl   Strix occidentalis   Secondaries   Adult   Male  
  Spotted Sandpiper   Actitis macularia   Tail   Juvenile   Female   Black background
  Spotted Sandpiper   Actitis macularia   Tail   Juvenile   Female   Blue background
  Spotted Sandpiper   Actitis macularia   Primaries   Juvenile   Female  
  Spotted Sandpiper   Actitis macularia   Secondaries   Juvenile   Female  
  Spotted Towhee   Pipilo maculatus   Tail   Adult   Male  
  Spotted Towhee   Pipilo maculatus   Primaries   Adult   Male  
  Spotted Towhee   Pipilo maculatus   Secondaries   Adult   Male  
  Spruce Grouse   Falcipennis canadensis   Tail   Adult   Female   subspecies canadensis
  Spruce Grouse   Falcipennis canadensis   Primaries   Adult   Female   subspecies canadensis
  Spruce Grouse   Falcipennis canadensis   Secondaries   Adult   Female   subspecies canadensis
  Stellers Eider   Polysticta stelleri   Primaries   Adult   Male  
  Stellers Eider   Polysticta stelleri   Secondaries   Adult   Male  
  Stellers Eider   Polysticta stelleri   Tail   Adult   Male   Black background
  Stellers Eider   Polysticta stelleri   Tail   Adult   Male   Blue background
  Stellers Eider   Polysticta stelleri   Primaries   Adult   Female  
  Stellers Eider   Polysticta stelleri   Secondaries   Adult   Female  
  Stellers Eider   Polysticta stelleri   Tail   Adult   Female  
  Stellers Jay   Cyanocitta stelleri   Primaries   Adult   Female  
  Stellers Jay   Cyanocitta stelleri   Tail   Adult   Female  
  Stellers Jay   Cyanocitta stelleri   Secondaries   Adult   Female  
  Surf Scoter   Melanitta perspicillata   Primaries   Adult   Male  
  Surf Scoter   Melanitta perspicillata   Secondaries   Adult   Male  
  Surf Scoter   Melanitta perspicillata   Tail   Adult   Male  
  Swainsons Hawk   Buteo swainsoni   Tail   Adult   Unknown  
  Swainsons Hawk   Buteo swainsoni   Tail   Juvenile   Unknown  
  Swainsons Hawk   Buteo swainsoni   Primaries   Adult   Female   Darker Individual
  Swainsons Hawk   Buteo swainsoni   Primaries   Adult   Female   Darker Individual--ventral view
  Swainsons Hawk   Buteo swainsoni   Secondaries   Adult   Female   Darker Individual
  Swainsons Hawk   Buteo swainsoni   Secondaries   Adult   Female   Darker Individual--ventral view
  Swainsons Hawk   Buteo swainsoni   Primaries   Adult   Unknown  
  Swainsons Hawk   Buteo swainsoni   Primaries   Adult   Unknown   Ventral view
  Swainsons Hawk   Buteo swainsoni   Secondaries   Adult   Unknown  
  Swainsons Hawk   Buteo swainsoni   Secondaries   Adult   Unknown   Ventral view
  Swainsons Hawk   Buteo swainsoni   Primaries   Juvenile   Unknown  
  Swainsons Hawk   Buteo swainsoni   Secondaries   Juvenile   Unknown   Black background
  Swainsons Hawk   Buteo swainsoni   Secondaries   Juvenile   Unknown   Blue background
  Swainsons Thrush   Catharus ustulatus   Tail   Adult   Male  
  Swainsons Thrush   Catharus ustulatus   Primaries   Adult   Male  
  Swainsons Thrush   Catharus ustulatus   Secondaries   Adult   Male  
  Swamp Sparrow   Melospiza georgiana   Tail   Adult   Female   Black background
  Swamp Sparrow   Melospiza georgiana   Tail   Adult   Female   Blue background
  Swamp Sparrow   Melospiza georgiana   Primaries   Adult   Female   Black background
  Swamp Sparrow   Melospiza georgiana   Primaries   Adult   Female   Blue background
  Swamp Sparrow   Melospiza georgiana   Secondaries   Adult   Female   Black background
  Swamp Sparrow   Melospiza georgiana   Secondaries   Adult   Female   Blue background
  Tennessee Warbler   Oreothlypis peregrina   Tail   Juvenile   Male  
  Tennessee Warbler   Oreothlypis peregrina   Primaries   Juvenile   Male  
  Tennessee Warbler   Oreothlypis peregrina   Secondaries   Juvenile   Male  
  Townsends Warbler   Setophaga townsendi   Tail   Adult   Female  
  Townsends Warbler   Setophaga townsendi   Primaries   Adult   Female  
  Townsends Warbler   Setophaga townsendi   Secondaries   Adult   Female  
  Tree Swallow   Tachycineta bicolor   Tail   Adult   Female  
  Tree Swallow   Tachycineta bicolor   Primaries   Adult   Female  
  Tree Swallow   Tachycineta bicolor   Secondaries   Adult   Female  
  Tree Swallow   Tachycineta bicolor   Primaries   Adult   Male   Black background
  Tree Swallow   Tachycineta bicolor   Primaries   Adult   Male   Blue background
  Tree Swallow   Tachycineta bicolor   Secondaries   Adult   Male  
  Tree Swallow   Tachycineta bicolor   Tail   Adult   Male  
  Tricolored Heron   Egretta tricolor   Tail   Adult   Female  
  Tricolored Heron   Egretta tricolor   Primaries   Adult   Female  
  Tricolored Heron   Egretta tricolor   Secondaries   Adult   Female  
  Trumpeter Swan   Cygnus buccinator   Primaries   Adult   Unknown  
  Trumpeter Swan   Cygnus buccinator   Secondaries   Adult   Unknown  
  Trumpeter Swan   Cygnus buccinator   Tail   Adult   Unknown  
  Tufted Puffin   Fratercula cirrhata   Tail   Adult   Male   Black background
  Tufted Puffin   Fratercula cirrhata   Tail   Adult   Male   Blue background
  Tufted Puffin   Fratercula cirrhata   Primaries   Adult   Male   Black background
  Tufted Puffin   Fratercula cirrhata   Primaries   Adult   Male   Blue background
  Tufted Puffin   Fratercula cirrhata   Secondaries   Adult   Male   Black background
  Tufted Puffin   Fratercula cirrhata   Secondaries   Adult   Male   Blue background
  Tundra Swan   Cygnus columbianus   Primaries   Adult   Unknown  
  Tundra Swan   Cygnus columbianus   Secondaries   Adult   Unknown  
  Tundra Swan   Cygnus columbianus   Tail   Adult   Unknown  
  Turkey Vulture   Cathartes aura   Tail   Adult   Unknown   Black background
  Turkey Vulture   Cathartes aura   Primaries   Adult   Unknown   Black background
  Turkey Vulture   Cathartes aura   Primaries   Adult   Unknown   Blue background
  Turkey Vulture   Cathartes aura   Primaries   Adult   Unknown   Undersides--black background
  Turkey Vulture   Cathartes aura   Primaries   Adult   Unknown   Undersides--blue background
  Turkey Vulture   Cathartes aura   Secondaries   Adult   Unknown   Black background
  Turkey Vulture   Cathartes aura   Secondaries   Adult   Unknown   Blue background
  Turkey Vulture   Cathartes aura   Secondaries   Adult   Unknown   Undersides
  Turkey Vulture   Cathartes aura   Tail   Adult   Unknown   Blue background
  Turkey Vulture   Cathartes aura   Tail   Adult   Unknown   Undersides--blue background
  Turkey Vulture   Cathartes aura   Tail   Adult   Unknown   Undersides--black background
  Upland Sandpiper   Bartramia longicauda   Tail   Adult   Male  
  Upland Sandpiper   Bartramia longicauda   Primaries   Adult   Male   Black background
  Upland Sandpiper   Bartramia longicauda   Primaries   Adult   Male   Blue background
  Upland Sandpiper   Bartramia longicauda   Secondaries   Adult   Male  
  Varied Thrush   Ixoreus naevius   Tail   Adult   Male  
  Varied Thrush   Ixoreus naevius   Primaries   Adult   Male  
  Varied Thrush   Ixoreus naevius   Secondaries   Adult   Male  
  Vauxs Swift   Chaetura vauxi   Tail   Juvenile   Unknown  
  Vauxs Swift   Chaetura vauxi   Primaries   Juvenile   Unknown  
  Vauxs Swift   Chaetura vauxi   Secondaries   Juvenile   Unknown  
  Veery   Catharus fuscescens   Tail   Adult   Unknown  
  Veery   Catharus fuscescens   Primaries   Adult   Unknown  
  Veery   Catharus fuscescens   Secondaries   Adult   Unknown  
  Verdin   Auriparus flaviceps   Tail   Adult   Unknown  
  Verdin   Auriparus flaviceps   Primaries   Adult   Unknown  
  Verdin   Auriparus flaviceps   Secondaries   Adult   Unknown  
  Vesper Sparrow   Pooecetes gramineus   Tail   Adult   Unknown  
  Vesper Sparrow   Pooecetes gramineus   Primaries   Adult   Unknown  
  Vesper Sparrow   Pooecetes gramineus   Secondaries   Adult   Unknown  
  Violet-green Swallow   Tachycineta thalassina   Tail   Adult   Male  
  Violet-green Swallow   Tachycineta thalassina   Primaries   Adult   Male  
  Violet-green Swallow   Tachycineta thalassina   Secondaries   Adult   Male  
  Virginia Rail   Rallus limicola   Tail   Adult   Female  
  Virginia Rail   Rallus limicola   Primaries   Adult   Female  
  Virginia Rail   Rallus limicola   Secondaries   Adult   Female  
  Wedge-tailed Shearwater   Ardenna pacificus   Tail   Adult   Female  
  Wedge-tailed Shearwater   Ardenna pacificus   Primaries   Adult   Female  
  Wedge-tailed Shearwater   Ardenna pacificus   Secondaries   Adult   Female  
  Western Bluebird   Sialia mexicanus   Tail   Adult   Female  
  Western Bluebird   Sialia mexicanus   Primaries   Adult   Female  
  Western Bluebird   Sialia mexicanus   Secondaries   Adult   Female  
  Western Bluebird   Sialia mexicanus   Tail   Adult   Male  
  Western Bluebird   Sialia mexicanus   Primaries   Adult   Male  
  Western Bluebird   Sialia mexicanus   Secondaries   Adult   Male  
  Western Grebe   Aechmophorus occidentalis   Primaries   Adult   Male  
  Western Grebe   Aechmophorus occidentalis   Secondaries   Adult   Male  
  Western Gull   Larus occidentalis   Tail   First Winter   Male   First Winter
  Western Gull   Larus occidentalis   Primaries   First Winter   Male   First Winter
  Western Gull   Larus occidentalis   Secondaries   First Winter   Male   First Winter
  Western Gull   Larus occidentalis   Tail   Second Cycle   Unknown   Black background
  Western Gull   Larus occidentalis   Tail   Second Cycle   Unknown   Blue background
  Western Gull   Larus occidentalis   Primaries   Second Cycle   Unknown   Black background
  Western Gull   Larus occidentalis   Primaries   Second Cycle   Unknown   Blue background
  Western Gull   Larus occidentalis   Secondaries   Second Cycle   Unknown   Black background
  Western Gull   Larus occidentalis   Secondaries   Second Cycle   Unknown   Blue background
  Western Gull   Larus occidentalis   Tail   Adult   Female  
  Western gull   Larus occidentalis   Primaries   Adult   Female  
  Western Gull   Larus occidentalis   Secondaries   Adult   Female  
  Western Kingbird   Tyrannus verticalis   Secondaries   Adult   Male  
  Western Kingbird   Tyrannus verticalis   Primaries   Adult   Male  
  Western Kingbird   Tyrannus verticalis   Tail   Adult   Male   Black background
  Western Kingbird   Tyrannus verticalis   Tail   Adult   Male   Blue background
  Western Meadowlark   Sturnella neglecta   Tail   Juvenile   Male  
  Western Meadowlark   Sturnella neglecta   Primaries   Juvenile   Male  
  Western Meadowlark   Sturnella neglecta   Secondaries   Juvenile   Male  
  Western Screech-Owl   Megascops kennicotti   Primaries   Adult   Male  
  Western Screech-Owl   Megascops kennicotti   Secondaries   Adult   Male  
  Western Screech-Owl   Megascops kennicotti   Tail   Adult   Male  
  Western Tanager   Piranga ludoviciana   Tail   Adult   Male  
  Western Tanager   Piranga ludoviciana   Primaries   Adult   Male  
  Western Tanager   Piranga ludoviciana   Secondaries   Adult   Male  
  Western Tanager   Piranga ludoviciana   Tail   Adult   Female  
  Western Tanager   Piranga ludoviciana   Primaries   Adult   Female  
  Western Tanager   Piranga ludoviciana   Secondaries   Adult   Female  
  Western Wood-Pewee   Contopus sordidulus   Tail   Adult   Female  
  Western Wood-Pewee   Contopus sordidulus   Primaries   Adult   Female   Black background
  Western Wood-Pewee   Contopus sordidulus   Primaries   Adult   Female   Blue background
  Western Wood-Pewee   Contopus sordidulus   Secondaries   Adult   Female  
  Whimbrel   Numenius phaeopus   Tail   Adult   Unknown  
  Whimbrel   Numenius phaeopus   Primaries   Adult   Unknown   Black background
  Whimbrel   Numenius phaeopus   Primaries   Adult   Unknown   Blue background
  Whimbrel   Numenius phaeopus   Secondaries   Adult   Unknown  
  White Ibis   Eudocimus albus   Tail   Adult   Female  
  White Ibis   Eudocimus albus   Primaries   Adult   Female  
  White Ibis   Eudocimus albus   Secondaries   Adult   Female  
  White Ibis   Eudocimus albus   Primaries   Juvenile   Unknown   Black background
  White Ibis   Eudocimus albus   Tail   Juvenile   Unknown   Black background
  White Ibis   Eudocimus albus   Tail   Juvenile   Unknown   Blue background
  White Ibis   Eudocimus albus   Primaries   Juvenile   Unknown   Blue background
  White Ibis   Eudocimus albus   Secondaries   Juvenile   Unknown   Black background
  White Ibis   Eudocimus albus   Secondaries   Juvenile   Unknown   Blue background
  White Tern   Gygis alba   Tail   Adult   Female  
  White Tern   Gygis alba   Primaries   Adult   Female  
  White Tern   Gygis alba   Secondaries   Adult   Female  
  White-breasted Nuthatch   Sitta carolinensis   Tail   Adult   Male  
  White-breasted Nuthatch   Sitta carolinensis   Primaries   Adult   Male  
  White-breasted Nuthatch   Sitta carolinensis   Secondaries   Adult   Male  
  White-crowned Sparrow   Zonotrichia leucophrys   Tail   Adult   Female   Subspecies pugetensis
  White-crowned Sparrow   Zonotrichia leucophrys   Primaries   Adult   Female   Subspecies pugetensis
  White-crowned Sparrow   Zonotrichia leucophrys   Secondaries   Adult   Female   Subspecies pugetensis
  White-faced Ibis   Plegadis chihi   Tail   Adult   Male  
  White-faced Ibis   Plegadis chihi   Primaries   Adult   Male  
  White-faced Ibis   Plegadis chihi   Secondaries   Adult   Male  
  White-faced Ibis   Plegadis chihi   Tail   Adult   Male   Ventral view
  White-faced Ibis   Plegadis chihi   Primaries   Adult   Male   Ventral view
  White-faced Ibis   Plegadis chihi   Secondaries   Adult   Male   Ventral view
  White-tailed Hawk   Geranoaetus albicaudatus   Tail   Juvenile   Female  
  White-tailed Hawk   Geranoaetus albicaudatus   Primaries   Juvenile   Female  
  White-tailed Hawk   Geranoaetus albicaudatus   Secondaries   Juvenile   Female  
  White-tailed Kite   Elanus leucurus   Tail   Juvenile   Female   Black background
  White-tailed Kite   Elanus leucurus   Tail   Juvenile   Female   Blue background
  White-tailed Kite   Elanus leucurus   Primaries   Juvenile   Female  
  White-tailed Kite   Elanus leucurus   Secondaries   Juvenile   Female  
  White-tailed Kite   Elanus leucurus   Tail   Adult   Female  
  White-tailed Kite   Elanus leucurus   Primaries   Adult   Female  
  White-tailed Kite   Elanus leucurus   Secondaries   Adult   Female  
  White-tailed Ptarmigan   Lagopus leucurus   Tail   Adult   Unknown   Non-breeding Plumage
  White-tailed Ptarmigan   Lagopus leucurus   Primaries   Adult   Unknown   Non-breeding Plumage
  White-tailed Ptarmigan   Lagopus leucurus   Secondaries   Adult   Unknown   Non-breeding Plumage
  White-tailed Tropicbird   Phaethon lepturus   Tail   Adult   Unknown   Black background
  White-tailed Tropicbird   Phaethon lepturus   Tail   Adult   Unknown   Blue background
  White-tailed Tropicbird   Phaethon lepturus   Primaries   Adult   Unknown   Black background
  White-tailed Tropicbird   Phaethon lepturus   Primaries   Adult   Unknown   Blue background
  White-tailed Tropicbird   Phaethon lepturus   Secondaries   Adult   Unknown   Black background
  White-tailed Tropicbird   Phaethon lepturus   Secondaries   Adult   Unknown   Blue background
  White-throated Sparrow   Zonotrichia albicollis   Tail   Adult   Male  
  White-throated Sparrow   Zonotrichia albicollis   Primaries   Adult   Male  
  White-throated Sparrow   Zonotrichia albicollis   Secondaries   Adult   Male  
  White-winged Crossbill   Loxia leucoptera   Tail   Juvenile   Male  
  White-winged Crossbill   Loxia leucoptera   Primaries   Juvenile   Male  
  White-winged Crossbill   Loxia leucoptera   Secondaries   Juvenile   Male  
  White-winged Dove   Zenaida asiatica   Tail   Adult   Unknown  
  White-winged Dove   Zenaida asiatica   Wing   Adult   Unknown  
  White-winged Scoter   Melanitta fusca   Primaries   Adult   Female   Black background
  White-winged Scoter   Melanitta fusca   Primaries   Adult   Female   Blue background
  White-winged Scoter   Melanitta fusca   Secondaries   Adult   Female   Black background
  White-winged Scoter   Melanitta fusca   Tail   Adult   Female  
  White-winged Scoter   Melanitta fusca   Secondaries   Adult   Female   Blue background
  White-winged Scoter   Melanitta fusca   Primaries   Adult   Male  
  White-winged Scoter   Melanitta fusca   Secondaries   Adult   Male   Black background
  White-winged Scoter   Melanitta fusca   Secondaries   Adult   Male   Blue background
  Whooping Crane   Grus americana   Secondaries   Adult   Male  
  Whooping Crane   Grus americana   Tail   Adult   Male  
  Whooping Crane   Grus americana   Primaries   Adult   Male  
  Wild Turkey   Meleagris gallopavo   Other   Adult   Female  
  Wild Turkey   Meleagris gallopavo   Primaries   Adult   Female   Black background
  Wild Turkey   Meleagris gallopavo   Primaries   Adult   Female   Blue background
  Wild Turkey   Meleagris gallopavo   Tail   Adult   Female   Black background
  Wild Turkey   Meleagris gallopavo   Tail   Adult   Female   Blue background
  Wild Turkey   Meleagris gallopavo   Secondaries   Adult   Female   Black background
  Wild Turkey   Meleagris gallopavo   Secondaries   Adult   Female   Blue background
  Willet   Tringa semipalmata        
  Willet   Tringa semipalmata   Tail   Adult   Male  
  Willet   Tringa semipalmata   Primaries   Adult   Male  
  Willet   Tringa semipalmata   Secondaries   Adult   Male  
  Willow Flycatcher   Empidonax traillii   Tail   Adult   Female  
  Willow Flycatcher   Empidonax traillii   Primaries   Adult   Female  
  Willow Flycatcher   Empidonax traillii   Secondaries   Adult   Female  
  Willow Ptarmigan   Lagopus lagopus   Tail   Adult   Unknown   Non-breeding Plumage
  Willow Ptarmigan   Lagopus lagopus   Wing   Adult   Unknown   Non-breeding Plumage
  Wilsons Phalarope   Phalaropus tricolor   Tail   Adult   Female  
  Wilsons Phalarope   Phalaropus tricolor   Primaries   Adult   Female   Black background
  Wilsons Phalarope   Phalaropus tricolor   Primaries   Adult   Female   Blue background
  Wilsons Phalarope   Phalaropus tricolor   Secondaries   Adult   Female  
  Wilsons Snipe   Gallinago delicata   Tail   Adult   Male  
  Wilsons Snipe   Gallinago delicata   Primaries   Adult   Male  
  Wilsons Snipe   Gallinago delicata   Secondary   Adult   Male  
  Wilsons Warbler   Cardellina pusilla   Tail   Adult   Female  
  Wilsons Warbler   Cardellina pusilla   Primaries   Adult   Female  
  Wilsons Warbler   Cardellina pusilla   Secondaries   Adult   Female  
  Winter Wren   Troglodytes hiemalis   Tail   Adult   Unknown  
  Winter Wren   Troglodytes hiemalis   Primaries   Adult   Unknown  
  Winter Wren   Troglodytes hiemalis   Secondaries   Adult   Unknown  
  Wood Duck   Aix sponsa   Primaries   Adult   Female  
  Wood Duck   Aix sponsa   Secondaries   Adult   Female  
  Wood Duck   Aix sponsa   Tail   Adult   Female  
  Wood Duck   Aix sponsa   Primaries   Adult   Male  
  Wood Duck   Aix sponsa   Secondaries   Adult   Male  
  Wood Duck   Aix sponsa   Tail   Adult   Male  
  Wood Stork   Mycteria americana   Primaries   Adult   Male  
  Wood Stork   Mycteria americana   Tail   Adult   Male  
  Wood Stork   Mycteria americana   Secondaries   Adult   Male  
  Wood Thrush   Hylocichla mustelina   Tail   Adult   Male  
  Wood Thrush   Hylocichla mustelina   Primaries   Adult   Male  
  Wood Thrush   Hylocichla mustelina   Secondaries   Adult   Male  
  Wrentit   Chamaea fasciata   Tail   Juvenile   Male   Black background
  Wrentit   Chamaea fasciata   Tail   Juvenile   Male   Blue background
  Wrentit   Chamaea fasciata   Primaries   Juvenile   Male  
  Wrentit   Chamaea fasciata   Secondaries   Juvenile   Male  
  Yellow Warbler   Setophaga petechia   Tail   Adult   Female  
  Yellow Warbler   Setophaga petechia   Primaries   Adult   Female  
  Yellow Warbler   Setophaga petechia   Secondaries   Adult   Female  
  Yellow Warbler   Setophaga petechia   Tail   Adult   Male   Black background
  Yellow Warbler   Setophaga petechia   Tail   Adult   Male   Blue background
  Yellow Warbler   Setophaga petechia   Primaries   Adult   Male   Black background
  Yellow Warbler   Setophaga petechia   Primaries   Adult   Male   Blue background
  Yellow Warbler   Setophaga petechia   Secondaries   Adult   Male   Black background
  Yellow Warbler   Setophaga petechia   Secondaries   Adult   Male   Blue background
  Yellow-bellied Sapsucker   Sphyrapicus varius   Tail   Adult   Male  
  Yellow-bellied Sapsucker   Sphyrapicus varius   Wing   Adult   Male  
  Yellow-billed Cuckoo   Coccyzus americanus   Tail   Adult   Male  
  Yellow-billed Cuckoo   Coccyzus americanus   Wing   Adult   Male  
  Yellow-billed Magpie   Pica nuttalli   Tail   Adult   Female  
  Yellow-billed Magpie   Pica nuttalli   Primaries   Adult   Female  
  Yellow-billed Magpie   Pica nuttalli   Secondaries   Adult   Female  
  Yellow-breasted Chat   Icteria virens   Tail   Adult   Unknown  
  Yellow-breasted Chat   Icteria virens   Primaries   Adult   Unknown  
  Yellow-breasted Chat   Icteria virens   Secondaries   Adult   Unknown  
  Yellow-crowned Night-Heron   Nyctanassa violacea   Wing   Adult   Female  
  Yellow-crowned Night-Heron   Nyctanassa violacea   Tail   Adult   Female  
  Yellow-rumped Warbler (Audubons)   Setophaga coronata auduboni   Tail   Adult   Male   Audubons--breeding plumage
  Yellow-rumped Warbler (Audubons)   Setophaga coronata auduboni   Primaries   Adult   Male   Audubons--breeding plumage
  Yellow-rumped Warbler (Audubons)   Setophaga coronata auduboni   Secondaries   Adult   Male   Audubons--breeding plumage
  Yellow-rumped Warbler (Myrtle)   Setophaga coronata coronata   Tail   Adult   Female   Myrtle
  Yellow-rumped Warbler (Myrtle)   Setophaga coronata coronata   Primaries   Adult   Female   Myrtle
  Yellow-rumped Warbler (Myrtle)   Setophaga coronata coronata   Secondaries   Adult   Female   Myrtle
  Zebra Dove   Geopelia striata   Tail   Adult   Male  
  Zebra Dove   Geopelia striata   Primaries   Adult   Male  
  Zebra Dove   Geopelia striata   Secondaries   Adult   Male  

Last Updated: April 17, 2023
Photographs from USFWS

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