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:
Central America - Migration only: 304,209 square km
Mexico - Migration only: 303,334 square km
South America - Wintering only: 1,027,361 square km; Migration only: 2,044,859 square km
U.S.A. - Resident year-round: 825,611 square km; Migration only: 407,523 square km