Range Description: Bullock's Oriole - Icterus bullockii

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: 106,138 square km
Central America - Wintering only: 22,868 square km
Mexico - Breeding only: 449,011 square km; Wintering only: 738,763 square km; Migration only: 556,661 square km
U.S.A. - Resident year-round: 7,709 square km; Breeding only: 3,260,627 square km; Migration only: 75,408 square km