Appearance:

A small, active and quick wader, sharing traits of both Tringa and Calidris type. Most easily identified in the field by it's behaviour and sound. Most distinct plumage feature is the white wedge in front of the wings at the sides of the breast. Body is elongated and legs fairly short and greenish. Constantly bobs body and head. In flight the dark rump and white wing-bars are obvious. Often flickers its wings when flying low above water, especially just before landing.

Sound:

Very vocal with characteristic repertoire of very high-pitched calls. Often heard is a disyllabic call, drawn out and slightly rising in pitch in the second part. This is often repeated in a series of rising tones in a cyclic manner, with approx 5 tones in each cycle.

Flight call, song:

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

Appearance:

Differs from Common Tern in shorter head, and blood-red bill. Legs shorter, but tail streamers longer (extends well past wings in sitting birds). Underparts of primaries with sharply bordered dark trailing edge (diffusely bordered in Common Tern). Both primaries and secondaries transparent to sunlight. Crest less apparent than in Common Tern and underside greyer. Cheeks white just below the black cap, often in contrast to grey lower cheeks. Juveniles lacks buff coloured back.

Sound:

Similar to Common Tern but higher pitched. Typical call a series of high pitched "tip-tip-tip", and longer, ringing, high-pitched "kriiiiii" calls. The drawn out "kree-aaahh" call falls less distinctly in pitch than Common Tern.

Calls:

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:Stein Ø. Nilsen, Licence,Link.