Range Description: American Tree Sparrow - Spizelloides arborea

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 - Breeding only: 3,873,428 square km; Wintering only: 808,696 square km; Migration only: 2,937,323 square km
U.S.A. - Breeding only: 1,078,579 square km; Wintering only: 5,520,685 square km; Migration only: 89,315 square km