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.

Appearance:

A dark, often secretive, wader. Quite similar to Wood Sandpiper, but differs in dark underwings, only small white spots on back, defined border between speckled chest and white belly, broad dark markings on tail and a supercilium that does not reach behind eye. Leaves an overall much darker impression than Wood Sandpiper. Particularly in flight.

Sound:

Totally different from Wood Sandpiper. Sharp, penetrating calls. Display call a high-pitched "kee-kleeoo-eet", continuously repeated with a wave-like motion in pitch. Other common calls have similar timbre and tone with different phrasing like; "klooeett -klee-klee-klee-klee-klee" and a rising pitch.

Flight call:

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

CC-sound:Peter Boesman, Licence,Link.