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10

Gull-billed Tern

(Gelochelidon nilotica)
Size: 33-42 cm; wing span 76-91 cm
Weight: Race "affinis": 150-205 g

Similar
species

Description     Classification     Distribution     Sightings     Photos     Breeding     Nest     Eggs     Behaviour     Food     Call/s

Physical description

Click here for a physical description

Taxonomy, classification

See Gull-billed Tern at Wikipedia .

Click here for classification information

Range, habitat, finding this species

Click here for information on habitat and range

Sightings

Click here for sighting information

Photos

Race "affinis"

ADULT

Sex unknown

NON-BREEDING

Near-frontal view of a Gull-billed Tern in non-breeding plumage; note the small ear patch
(photo courtesy of B. Hensen)
[Lee Point, Darwin, NT, August 2013]

Near-lateral view of a Gull-billed Tern in non-breeding plumage (photo courtesy of B. Hensen)
[Lee Point, Darwin, NT, August 2013]

Near-frontal view of two Gull-billed Terns in non-breeding plumage resting on a beach (photo courtesy of B. Hensen)
[Lee Point, Darwin, NT, August 2013]

Lateral view of several Gull-billed Terns, race "affinis", in non-breeding plumage, one of which is taking off, displaying prominently its dark wing tips (photo courtesy of B. Hensen)
[Leanyer Sewage Treatment Plant, Darwin, NT, November 2018]

Direct comparison of the sizes of a Gull-billed Tern, race "affinis", in non-breeding plumage resting on a beach (right), with an Australian Tern (left) - note the difference in sizes; in the background a Caspian Tern in breeding plumage
(photo courtesy of B. Hensen)
[Lee Point, Darwin, NT, August 2013]

Race "nilotica"

Photos of Gull-billed Terns, nominate race "nilotica", are available from Europe.

These pages are largely based on our own observations and those of our contributors. The structure of these bird pages is explained HERE. For more salient facts on any bird species please refer to a field guide.

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