Gull-billed Tern

The gull-billed tern (Gelochelidon nilotica), formerly Sterna nilotica, is a tern in the family Laridae. It is now considered to be in its own genus. The genus name is from Ancient Greek gelao, "to laugh", and khelidon, "swallow". The specific niloticus is from Latin and means of the Nile.