Appearance:

Unmistakable due to the extremely long, red legs. High contrast plumage with pointed, black wings (both upper and under-side) and white underparts. Tail white, with white wedge extending up back. Back of adult male sooty black, while brownish black in female and immature. Head all white or with black markings independent of sex (males more often have black markings than females though). Immature with faint, pale fringes to coverts, and white trailing edge to secondaries visible in flight.

Sound:

Most vocal at breeding ground. Various short,sharp "kyp" may resemble both Avocet, Coot and Spur-winged Lapwing (Vanellus spinosus). While a tern-like "kee-arr" is more distinct. Note that immature birds have a different contact call closely resembling Wood Sandpiper, but do not utter it in series.

Contact calls:

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

Featherbase

CC

Appearance:

Summer: Red throat (seemingly black at a distance!). Lacks white vertical framing of throat patch and white spotted back of Black-throated Diver. Winter: Quite pale. White face and eye-ring. Just a narrow stripe of dark grey along the back of the neck. In all plumages best identified by posture and silhouette, especially when seen at a distance. Slender neck, head and bill. Flat chest. Usually shows no white flank patch. Bill usually held uptilted.

Sound:

In flight; nasal, dry, gooselike series of rhythmic cackling "ko-ko-ko". Most vocal when courting and breeding. A meowing drawn-out sound starting with a register break, then falling in pitch. Display call a far reaching rolling cyclic cooing, given in long sequences.

Song/display:

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:Lauri Hallikainen, Licence,Link.