Range Description: Red-billed Tropicbird - Phaethon aethereus

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: 407,017 square km
Central America - Resident year-round: 211,219 square km; Wintering only: 501,309 square km
Mexico - Breeding only: 128,173 square km; Wintering only: 1,943,769 square km
South America - Resident year-round: 982,948 square km; Wintering only: 940,057 square km
U.S.A. - Wintering only: 88,746 square km