USFWS
(Top to bottom, left to right: Arapaho NWR by Tom Koerner; Sand Lake WRM by Tom Koerner; Delaware Bay by USFWS; Chassahowitzka NWR by USFWS; Aroostook NWR by Keith Ramos; Ding Darling NWR by Liz Barraco; Ash Meadows NWR by Rob Colvin; Francis Biedler NWR by Chris Morris; Forsythe NWR by Becky Longenecker.)
