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:

Summer plumage unmistakable, with black underparts framed in white, with white and grey-speckled upperparts. Diagnostic in all plumages are the black armpits, which are clearly visible in flying birds. Also shows white wing-bars and very pale tail, with some barring. Winter-plumaged and juvenile birds speckled in grey with white underparts. Can be mistaken for Golden Plover. Especially the juveniles, which may have faint golden tone to plumage. Note instead heavier bill with swollen tip and bulkier body.

Sound:

Contact call diagnostic. A plaintive, drawn and trisyllabic (but continuous) "kleeooowee". Pitch falls on second syllable and rises on last.

Contact 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-photo:bathyporeia, Licence,Link.CC-sound:Paul Marvin, Licence,Link.