Range Description: Black Oystercatcher - Haematopus bachmani

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: 71,024 square km
Mexico - Resident year-round: 23,280 square km
U.S.A. - Resident year-round: 163,642 square km; Wintering only: 13,004 square km