Range Description: Black-throated Blue Warbler - Setophaga caerulescens

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: 619,020 square km; Migration only: 47,307 square km
Caribbean - Wintering only: 223,968 square km
Central America - Wintering only: 125,744 square km
Mexico - Wintering only: 5,999 square km
U.S.A. - Breeding only: 526,059 square km; Wintering only: 7,056 square km; Migration only: 1,400,220 square km