Range Description: Western Bluebird - Sialia mexicana

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: 3,090 square km; Breeding only: 35,505 square km
Mexico - Resident year-round: 577,998 square km; Wintering only: 417,907 square km
U.S.A. - Resident year-round: 681,512 square km; Breeding only: 482,042 square km; Wintering only: 229,243 square km