Waterfowl biologist, measuring and marking eggs at Black Brant colony; Branta bernicla nigricans, Tutakoke River research camp, Yukon Delta NWR, Alaska
Amanda Van Dellen, Waterfowl biologist, measuring and marking eggs at Black Brant colony; Branta bernicla nigricans, Tutakoke River research camp, Yukon Delta NWR, Alaska