Australian tern, Australian gull-billed tern (Gelochelidon macrotarsa)

Gelochelidon macrotarsa is a species in the Gelochelidon genus. It is commonly known as Australian tern, Australian gull-billed tern This name is unplaced name for the species in the family Laridae subfamily Sterninae, tribe Sternini, . This species is found in Australia and New Guinea.