Trumpeter swans in flight at Yukon Flats National Wildlife Refuge

The Yukon Flats National Wildlife Refuge was established to conserve fish and wildlife populations and habitats in their natural diversity including nesting waterfowl, other migratory birds, dall sheep, bears, moose, wolves, wolverines, other furbearers, caribou, and salmon; to fulfill international treaty obligations; to provide for continued subsistence uses; and to ensure necessary water quality and quantity.