Species:

Gull-billed Tern (Gelochelidon nilotica)

Broad-billed Sandpiper (Calidris falcinellus)

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Length (cm):
35-38
16-17
Wingspan (cm):
100-115
37-39
Weight (gram):
190-260
30-49
Size group:
Crow-size
Thrush-size
Main Texts:
Appearance:

Easily confused with Sandwich Tern but choice of habitat usually different. Adults differs by noticeably shorter and deeper bill, lacking yellow tip. Wings are broader, tail is shorter and only slightly forked. Lacks crest. Primaries with dark trailing edge, especially underside. Rump pale grey, and there is no contrast between grey back and white tail as in Sandwich Tern. Loses the black cap in winter, but keeps a black mask (less black on head than Sandwich T). Immature birds also gives a paler impression. The back is almost uniform in colour, and the wings also have only diffuse markings. The dark trailing edge to the primaries is present though, together with dark eye mask. Rest of head is pale. Flight slightly front-heavy with shallow wing-beats. Catches insects in the air and from the ground in flight. Rarely plunge-dives. Prefers fresh water, and is often seen near wetlands, rivers and flooded fields, but also in salt water during migration.

Sound:

Quite vocal and easily distinguished from most congeners. Mewing and sharp in tone, but not rattling or raucous like most terns. Most typical call is a disyllabic, mewing "ke-waat", with an upward inflection. Other variants are series of "ke-ke-ke-ke", or the mewing sounds.

Contact call:

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See sound file


Distribution:

Xeno-canto: map

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

CC

CC-sound:Stanislas Wroza, Licence,Link.

Appearance:

Can be mistaken for a Dunlin but differs in characteristic double supercilium, unmarked belly and shorter legs. Bill is thicker, almost swollen at base, and more distinctly bent at tip. Overall impression much more contrasty than Dunlin. Winter plumage with dark centres of tertials, and finely striped crown. Juveniles with white V-shaped markings on back, similar to Little Stint. Wing bars and tail markings resembles Dunlin in flight. Moves relatively slow when feeding.

Sound:

Distinct contact call. A trilling "drrroiiit" with a peculiar timbre, ending with a rapid rise of pitch. Song often preceded by the contact call, which then fuses into a continuous vibrating trill.

Song:

Error loading Flash for sound!
See sound file


Distribution:

Xeno-canto: map

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

CC

CC-sound:Patrik Åberg, Licence,Link.

Similar species (image):
Similar species (sound):
Silhouette Group:
Gull-like
Silhouette
Waders
Silhouette
Several different images of the species
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Several different sounds of the species
Error loading Flash for sound!
See sound file