Large-billed Tern - Phaetusa simplex - Trinta-réis-grande
(Photo by Maria Bedacht, taken in Alagoas, Brazil - Oct 2004.)
Described by Gmelin, JF in 1789. (See: Birds in Brazil, H. Sick - pg 239 and Birds of North America, Alsop, 2002, pg 426)
The Large-billed Tern are the ones with the yellow colored bills.
