Diet of Sula leucogaster Boddaert, in the Moleques do Sul Island, Florianopolis, Santa Catarina, Brazil

Sula leucogaster breeds in some coastal and oceanic islands of Brazil, and uses as food a great diversity of prey, captured in flat diving, between 10 to 15 m, beyond ictiofauna discarded in shrimps fisheries. This work aims to supply basic information on the natural feeding of the Brown Booby, through the natural regurgitation collected between 2000 to 2004, in the Moleques do Sul Islands. It was registered the occurrence of 35 species-prey in 257 pellets, totalizing 26,5 kg. Despite the strong seazonality in the diet of S. leucogaster, the biggest frequencies of regurgitations had been gotten in the summer, where the Sciaenidae, Engraulidae and Batrachoididae were the more explored prey.