Seasonal codes
- Sp = Spring (March, April, May)
- Su = Summer (June, July, August)
- Fa = Fall (September, October, November)
- Wi = Winter (December, January, February)
Abundance codes
- C = Common (annual; you’re sure to see)
- U = Uncommon (annual; likely to see)
- R = Rare (annual; not guaranteed to see)
- I = Irregular (not annual, but multiple records)
- Ca = Casual (not annual; only a few records)
- Ac = Accidental (only one record ever in that season)
- Dashes indicate changes in status within a season
Bold* = Breeding |
Sp |
Su |
Fa |
Wi |
DUCKS, GEESE, and SWANS |
||||
Emperor Goose |
C-I |
Ca |
I-C |
C |
Snow Goose |
Ca |
Ac |
|
Ac |
Greater White-fronted Goose |
I |
|
Ca |
Ac |
Taiga Bean Goose |
I |
|
|
|
Tundra Bean Goose |
|
|
|
|
Brant |
Ca |
Ca |
Ca |
Ca |
Cackling Goose |
C |
Ca |
R |
Ac |
Tundra Swan (columbianus) |
Ca |
Ca |
Ac |
|
Tundra Swan (bewickii) |
Ac |
|
|
Ca |
Whooper Swan |
U-Ca |
|
I |
R |
Baikal Teal |
|
|
Ac |
|
Garganey |
Ca |
Ca |
Ac |
|
Blue-winged Teal |
|
|
Ac |
|
Northern Shoveler* |
R |
R |
R |
R |
Gadwall |
I |
Ca |
I |
I |
Falcated Duck |
Ca |
Ca |
Ac |
Ac |
Eurasian Wigeon |
U |
I |
U |
C |
American Wigeon |
I |
Ca |
Ca |
Ca |
Eastern Spot-billed Duck |
Ca |
Ca |
Ac |
Ca |
Mallard* |
C |
C |
C |
C |
Northern Pintail* |
C |
U |
C |
C |
Green-winged Teal (carolinensis) |
I |
Ca |
Ac |
Ac |
Green- winged Teal* (crecca) |
C |
C |
C |
C |
Canvasback |
Ca |
Ac |
Ca |
I |
Redhead |
|
|
Ac |
Ac |
Common Pochard |
Ca |
Ca |
Ac |
Ca |
Ring-necked Duck |
Ca |
Ac |
|
|
Tufted Duck |
U |
I |
R |
U |
Greater Scaup* |
C |
U |
C |
C |
Lesser Scaup |
I |
Ca |
Ac |
Ac |
Steller's Eider |
I |
Ac |
Ca |
I |
King Eider |
Ca |
Ca |
Ca |
Ca |
Common Eider* |
U |
C |
U |
U |
Harlequin Duck |
C |
U |
C |
C |
Surf Scoter |
I |
Ac |
Ca |
I |
White-winged Scoter |
C |
I |
C |
C |
Black Scoter |
C |
I |
U |
C |
Long-tailed Duck |
U |
I |
U |
C |
Bufflehead |
C |
I |
U |
C |
Common Goldeneye |
C |
R |
U |
C |
Barrow's Goldeneye |
I |
Ac |
|
Ca |
Smew |
I |
Ca |
Ca |
I |
Hooded Merganser |
Ca |
|
Ac |
Ca |
Common Merganser (americanus) |
I |
I |
I |
I |
Goosander (merganser) |
||||
Red-breasted Merganser* |
C |
C |
C |
C |
GROUSE |
||||
Rock Ptarmigan* |
C |
C |
C |
C |
GREBES |
||||
Horned Grebe |
U |
Ca |
C |
U |
Red-necked Grebe |
C |
Ca |
C |
C |
Western Grebe |
|
|
|
Ac |
CUCKOOS |
||||
Common Cuckoo |
|
I |
I |
|
Oriental Cuckoo |
|
|
Ac |
|
SWIFTS |
||||
Fork-tailed Swift |
|
|
Ac |
|
RAILS and COOTS |
||||
American Coot |
|
|
|
Ac |
CRANES |
||||
Sandhill Crane |
I |
I |
I |
|
OYSTERCATCHERS |
||||
Black Oystercatcher* |
C |
C |
C |
U |
LAPWINGS and PLOVERS |
||||
Black-bellied Plover |
Ca |
Ca |
Ca |
|
Pacific Golden-Plover |
C |
R |
U |
|
Common Ringed Plover |
|
Ac |
|
|
Semipalmated Plover* |
C |
C |
R |
|
Lesser Sand-Plover |
Ca |
Ca |
|
|
SANDPIPERS, PHALAROPES, and ALLIES |
||||
Bristle-thighed Curlew |
I |
Ac |
|
|
Whimbrel |
I |
Ca |
Ca |
|
Far Eastern Curlew |
Ca |
Ca |
|
|
Bar-tailed Godwit |
U |
I |
I |
|
Black-tailed Godwit |
Ca |
|
|
|
Ruddy Turnstone |
Ca-R |
U |
U-Ca |
|
Black Turnstone |
|
Ac |
Ac |
|
Great Knot |
|
Ac |
|
|
Red Knot |
Ca |
Ca |
Ca |
Ca |
Ruff |
Ca |
Ca |
Ca |
|
Broad-billed Sandpiper |
|
Ac |
|
|
Sharp-tailed Sandpiper |
|
Ca |
U |
|
Temminck's Stint |
Ca |
Ac |
Ca |
|
Long-toed Stint |
Ca |
Ac |
Ac |
|
Red-necked Stint |
I |
Ca |
I |
|
Sanderling |
U |
R |
U |
C |
Dunlin |
I |
Ca |
I |
Ca |
Rock Sandpiper* |
C |
C |
C |
C |
Baird's Sandpiper |
Ac |
Ca |
Ca |
|
Little Stint |
Ac |
Ca |
I |
|
Least Sandpiper |
Ca |
Ac |
Ac |
|
Buff-breasted Sandpiper |
|
Ca |
Ca |
|
Pectoral Sandpiper |
Ca |
Ac |
R |
|
Semipalmated Sandpiper |
Ac |
|
|
|
Western Sandpiper |
Ca |
I |
I |
Ac |
Long-billed Dowitcher |
Ac |
|
U |
|
Common Snipe |
R |
Ca |
Ca |
|
Wilson's Snipe |
R |
|
Ca |
|
Terek Sandpiper |
Ca |
|
|
|
Common Sandpiper |
Ca |
|
Ca |
|
Gray-tailed Tattler |
Ca |
Ca |
I |
|
Wandering Tattler |
U |
R |
R |
|
Lesser Yellowlegs |
Ac |
Ca |
|
|
Spotted Redshank |
Ca |
|
Ca |
|
Common Greenshank |
I |
Ac |
Ca |
|
Greater Yellowlegs |
|
|
Ca |
|
Wood Sandpiper |
R |
I |
Ca |
Ac |
Marsh Sandpiper |
|
Ca |
Ca |
|
Red-necked Phalarope* |
U |
C |
Ca |
|
Red Phalarope |
Ca |
Ca |
Ca |
|
JAEGERS |
||||
Pomarine Jaeger |
Ca |
Ca |
|
|
Parasitic Jaeger* |
C |
C |
U |
|
Long-tailed Jaeger |
|
Ca |
|
|
AUKS, MURRES, and PUFFINS |
||||
Common Murre* |
U |
R |
U |
R |
Thick-billed Murre |
I |
I |
I |
R |
Pigeon Guillemot* |
|
|
|
|
Long-billed Murrelet |
Ac |
|
|
|
Marbled Murrelet* |
C |
U |
U |
R |
Kittlitz's Murrelet* |
C |
U |
R |
R |
Ancient Murrelet |
C |
C |
R |
R |
Cassin's Auklet |
Ca |
Ca |
Ca |
|
Parakeet Auklet |
Ca |
Ac |
Ca |
Ca |
Least Auklet |
Ca |
Ca |
Ca |
Ca |
Whiskered Auklet* |
Ca |
Ca |
Ca |
Ca |
Crested Auklet |
Ca |
Ca |
Ca |
Ca |
Horned Puffin* |
I-C |
C |
C-I |
I |
Tufted Puffin* |
I-C |
C |
C-I |
I |
GULLS and TERNS |
||||
Black-legged Kittiwake |
R |
R |
C |
Ca |
Red-legged Kittiwake |
|
|
Ca |
|
Sabine's Gull |
|
Ac |
Ac |
|
Bonaparte's Gull |
Ac |
|
|
|
Black-headed Gull |
R |
I |
Ca |
|
Black-tailed Gull |
|
Ac |
|
|
Mew Gull (brachyrhynchus) |
I |
Ca |
Ca |
I |
Mew Gull (kamtschatschensis) |
||||
Herring (Vega) Gull (vegae) |
I |
Ca |
Ca |
I |
Iceland Gull |
Ac |
|
Ca |
R |
Slaty-backed Gull |
Ca |
Ac |
Ca |
Ca |
Glaucous-winged Gull* |
C |
C |
C |
C |
Glaucous Gull |
R |
Ca |
Ca |
R |
Aleutian Tern* |
Ac-C |
C |
Ca |
|
White-winged Tern |
|
Ac |
|
|
Common Tern |
|
Ac |
(Ac) |
|
Arctic Tern* |
Ac-C |
C |
U-Ac |
|
LOONS |
||||
Red-throated Loon |
I |
I |
I |
Ca |
Arctic Loon |
U |
|
Ca |
Ac |
Pacific Loon |
U |
Ca |
R |
I |
Common Loon* |
C |
C |
U |
R |
Yellow-billed Loon |
Ca |
Ca |
Ca |
Ca |
TUBENOSES |
||||
Laysan Albatross |
R |
Ca |
R |
|
Black-footed Albatross |
Ca |
Ca |
Ca |
|
Fork-tailed Storm-Petrel* |
U |
U |
U |
|
Leach's Storm-Petrel |
R |
R |
R |
|
Northern Fulmar |
R |
R |
I |
|
Cook's Petrel |
|
Ac |
|
|
Short-tailed Shearwater |
R |
R |
R |
|
Sooty Shearwater |
R |
R |
R |
|
CORMORANTS |
||||
Red-faced Cormorant* |
U |
U |
U |
U |
Pelagic Cormorant* |
C |
C |
C |
C |
Double-crested Cormorant |
Ac |
|
Ac |
Ac |
HERONS, BITTERNS, and ALLIES |
||||
Great Egret |
Ca |
Ca |
Ca |
Ca |
Black-crowned Night-heron |
Ac |
|
|
|
OSPREYS |
||||
Osprey |
Ca |
Ca |
Ac |
|
HAWKS, EAGLES, and ALLIES |
||||
Northern Harrier |
I |
|
I |
I |
Eurasian Sparrowhawk |
|
|
Ac |
(Ac) |
Bald Eagle* |
C |
C |
C |
C |
Rough-legged Hawk |
|
Ac |
Ca |
Ca |
OWLS |
||||
Snowy Owl |
I |
Ca |
I |
I |
Short-eared Owl* |
R |
R |
R |
U |
Boreal Owl |
Ac |
|
|
|
KINGFISHERS |
||||
Belted Kingfisher |
|
|
Ac |
|
FALCONS |
||||
Eurasian Kestrel |
|
|
Ac |
Ac |
Merlin |
|
|
Ca |
I |
Gyrfalcon* |
R |
R |
R |
R |
Peregrine Falcon* (pealei) |
U |
U |
C |
U |
SHRIKES |
||||
Northern Shrike |
Ca |
|
Ca |
Ca |
CROWS and JAYS |
||||
Common Raven* |
C |
C |
C |
C |
LARKS |
||||
Eurasian Skylark |
|
Ca |
Ac |
|
SWALLOWS |
||||
Bank Swallow |
Ca |
Ca |
Ca |
|
Tree Swallow |
Ca |
Ca |
Ac |
|
Barn Swallow |
|
Ca |
|
|
Cliff Swallow |
Ca |
|
|
|
WRENS |
||||
Pacific Wren* |
C |
C |
C |
U |
LEAF WARBLERS |
||||
Wood Warbler |
|
|
Ac |
|
Dusky Warbler |
|
|
Ac |
|
Kamchatka Leaf Warbler |
|
|
Ac |
|
OLD WORLD FLYCATCHERS and CHATS |
||||
Gray-streaked Flycatcher |
|
|
Ca |
|
Siberian Rubythroat |
|
|
Ac |
|
Taiga Flycatcher |
|
|
Ac |
|
Northern Wheatear |
Ca |
Ac |
Ca |
|
THRUSHES |
||||
Hermit Thrush |
|
|
Ac |
|
Eyebrowed Thrush |
Ca |
Ca |
Ac |
|
Dusky Thrush |
(Ac) |
|
Ca |
|
American Robin |
|
|
Ac |
Ac |
WAXWINGS |
||||
Bohemian Waxwing |
|
|
Ca |
|
WAGTAILS and PIPITS |
||||
Eastern Yellow Wagtail |
Ca |
Ac |
Ca |
|
Gray Wagtail |
Ac |
|
Ac |
|
White Wagtail (lugens ) |
Ca |
Ca |
Ca |
|
Olive-backed Pipit |
Ca |
|
Ca |
|
Red-throated Pipit |
|
Ac |
|
|
American Pipit |
Ca |
Ca |
I |
Ca |
FINCHES |
||||
Brambling |
I |
Ca |
Ca |
|
Hawfinch |
I |
Ca |
|
|
Common Rosefinch |
|
Ca |
|
|
Pine Grosbeak |
|
|
|
Ca |
Asian Rosy-Finch |
|
|
|
Ac |
Gray-crowned Rosy-Finch* |
C |
C |
C |
C |
Gray-crowned Rosy-Finch (littoralis) |
|
|
|
Ac |
Oriental Greenfinch |
|
|
Ca |
|
Common Redpoll |
I |
Ca |
I |
I |
Hoary Redpoll |
Ca |
Ac |
Ca |
Ca |
Red Crossbill |
|
|
Ac |
|
White-winged Crossbill |
|
|
Ac |
|
Pine Siskin |
I |
Ac |
|
I |
LONGSPURS and SNOW BUNTINGS |
||||
Lapland Longspur* |
Ac-C |
C |
C-Ac |
Ac |
Snow Bunting* |
C |
C |
C |
C |
McKay's Bunting |
Ca |
|
|
Ac |
OLD WORLD BUNTINGS |
||||
Rustic Bunting |
Ca |
|
Ca |
|
NEW WORLD SPARROWS and ALLIES |
||||
American Tree Sparrow |
Ac |
|
|
|
Dark-eyed Junco |
|
|
|
Ac |
Golden-crowned Sparrow |
Ac |
|
Ac |
|
Savannah Sparrow |
Ca |
Ca |
Ca |
|
Song Sparrow* |
C |
C |
C |
C |
BLACKBIRDS |
||||
Rusty Blackbird |
Ac |
|
|
|
WOOD-WARBLERS |
||||
Yellow Warbler |
|
|
Ac |
|
Blackpoll Warbler |
|
|
Ac |
|
Yellow-rumped Warbler |
|
|
Ac |
|
"HYPOTHETICAL" species needing more documentation |
||||
American Golden-plover |
(Ac) |
|
|
|
Bluethroat |
|
|
(Ac) |
|