CHARADRIIFORMES: Laridae

Gelochelidon nilotica  

Gull-billed Tern (Gelochelidon nilotica)
click photo for larger image
© Geoff Walker 2014
Toorbul, QLD (Jul, 2014)

The bird on the right, Asaian race affinis of Gull-billed Tern, is noticeably smaller and has a shorter bill than the Australian race, macrotarsa.

Gull-billed Tern (Gelochelidon nilotica)

Breeding and Non-breeding Colours

Gull-billed Tern (Gelochelidon nilotica)

Gull-billed Tern

Gull-billed Tern (Gelochelidon nilotica)

Gull-billed Tern

Gull-billed Tern (Gelochelidon nilotica)

Gull-billed Tern Asian Race affinis

Gull-billed Tern (Gelochelidon nilotica)

Gull-billed Tern Asian Race affinis