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:

Small, stocky, white heron with short bill and neck. Heavy jowl. Plumage all white, except in breeding birds which show varying amount of buff on back, crown and chest. Bill usually yellow, but turns orange-red in breeding birds, and is dark in immatures. Legs pale greyish green, but darker in young birds. May be confused with both Little Egret and Squacco Heron in flight. Differs from Little Egret in leg color and shorter, thicker neck and bill. Told from Squacco Heron by unstreaked body/head, and smaller bill. Generally leaves a less elegant impression than other small herons.

Sound:

Usually silent away from breeding ground. In the colonies a chorus of various coarse sounds can be heard. Most distinct is a disyllabic "rick-rack". Other sounds includes short, guttural utterings, or drawn, harsh shrieks.

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