Range Description: Royal Tern - Thalasseus maximus

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 - Resident year-round: 1,191,083 square km; Wintering only: 839 square km
Central America - Wintering only: 236,604 square km
Mexico - Wintering only: 380,809 square km; Migration only: 2,654 square km
South America - Resident year-round: 874,648 square km; Breeding only: 73,750 square km; Wintering only: 250,113 square km
U.S.A. - Resident year-round: 94,169 square km; Breeding only: 94,794 square km; Wintering only: 382,730 square km