Range Description: Canvasback - Aythya valisineria

Summary of the extent of the breeding, wintering, migration and year-round range of this species in the Western Hemisphere, including Canada, U.S.A. and Mexico:

Canada - Resident year-round: 9,659 square km; Breeding only: 2,144,341 square km; Wintering only: 60,041 square km; Migration only: 26,517 square km
Mexico - Wintering only: 1,519,858 square km
U.S.A. - Resident year-round: 91,199 square km; Breeding only: 1,392,507 square km; Wintering only: 4,076,521 square km; Migration only: 1,406,336 square km