Appearance:

Occurs in dark and pale morph. Plumage recalling gulls more than shearwaters (especially pale morph). Differs from shearwaters in white or pale head, compact body, short and heavy bill and broad wings. Flight pattern distinguishes it from gulls, and is similar to other tubenoses. Glides on stiff wings with occasional bursts of shallow and stiff wing-beats. Pale base of primaries visible at considerable distance in both dark and pale morph. Dark morph most common in high-arctic areas, pale morph most common in southern breeding range.

Sound:

Mostly heard on breeding ground. Coarse, harsh, staccato calls when courting or quarrelling.

Social interaction:

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

Sounds:Recorded by Stein Ø. Nilsen,http://www.xeno-canto.org ,CC license

Appearance:

Largely unmistakable. Huge, almost all white, bird with black flight feathers, long red legs and bill. Juveniles with dark bill tip and pale legs. Easily told from Black Stork in flight by all white underparts, including wing coverts. Only flight feathers black. Wing pattern similar to White Pelican and Egyptian Vulture. Often soars high in flocks like raptors.

Sound:

Mostly silent. Loud, modulated bill-clattering from both sexes is heard during courtship/display.

Display 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-sound:Tomas Belka, Licence,Link.