Range Description: Black-headed Gull - Chroicocephalus ridibundus

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: 11,346 square km; Wintering only: 113,690 square km
Caribbean - Wintering only: 5,161 square km