Appearance:

Unmistakable in breeding plumage, but otherwise easily confused with other marsh terns. Breeding plumage with black head and belly, but pale underwing and grey rump. When in immature and winter plumage it differs from Common and Arctic tern by smaller size and short, moderately forked tail, and from other marsh terns by slimmer body and wings (compared to White-winged tern), and relatively long, thin bill. Both immature and adult winter show dark front edge of wing, and characteristic dark shoulder patch at wing base. Back is dark in immature birds. Grey rump in all plumages. Flight usually different from Sterna-terns, with erratic dives for no apparent reason, and "aimless" change of direction. Note that when foraging over saltwater, flight becomes more Sterna-like.

Sound:

Moderately vocal. Flight call a more or less clear "kleck, or a disyllabic "klee-ake" with accented first syllable. Sometimes slightly rolling "klirr-eke", but never as much as in White-winged Tern. Also a slightly harsher "kreek", but not as raspy as in Whiskered Tern.

Flight call:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-sound:Ad Postma, Licence,Link.

Appearance:

Large Tringa with upcurved bill. The mainly white and pale grey plumage (and head) gives it a pale appearance. Upper parts speckled in black in summer plumage. Upper side of wings rather dark, back lighter grey with conspicuous long white wedge. Tail white, with diffuse grey barring. Back of juveniles with v-shaped scales/fringes. Legs greenish to grey-green. Wing beats quite deep and sometimes with "slow motion" like quality.

Sound:

Most heard is a characteristic, trisyllabic "tew-tew-tew" (sometimes two or four syllables). Can resemble redshank, but pitch more stable, and not falling notably. Each syllable is clearly separated and equally emphasized. Song a clear disyllabic "cloo-eeee", repeated in cycles but each phrase clearly separated. At close range a short creaky sound is audible (between each phrase). Redshank may sing in a slightly similar way, but in continuous, linked phrases.

Flight call:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-sound:Sonnenburg, Licence,Link.