Range Description: Costa's Hummingbird - Calypte costae

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:

Mexico - Resident year-round: 242,465 square km; Breeding only: 52,376 square km; Wintering only: 35,502 square km
U.S.A. - Resident year-round: 112,293 square km; Breeding only: 156,870 square km