Range Description: Sooty Tern - Onychoprion fuscatus

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:

Caribbean - Wintering only: 2,658,565 square km; Migration only: 346,241 square km
Central America - Wintering only: 280,340 square km
Mexico - Wintering only: 1,369,786 square km; Migration only: 301,046 square km
South America - Resident year-round: 17,746 square km; Wintering only: 2,356,342 square km
U.S.A. - Migration only: 596,901 square km