Appearance:

Fairly small shearwater with jet black upperparts, and pure white underparts. Armpits often with dark markings. White notch behind wing base. Distinguished from Yelkouan and Balearic Shearwater by the always pure white vent. Faint, white wedge behind ear coverts. Legs do not protrude behind the tail. Flight typical of family: Rapid, shallow and stiff wing-beats, with alternating glides. Sometimes with only the primaries moving.

Sound:

Vocal at breeding ground. The call is sharp and wailing, and consist of two parts. A drawn, "inhalation", is immediately followed by a trisyllabic "ka-ya-ya".

Song:

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

CC

CC-sound:david m, Licence,Link.

CC-photos:Jean-Pierre R., Licence,Link.

Appearance:

White with black wing tips and yellow-buff at back of head. Juveniles brown with small pale speckles, white u-shaped rump patch and pale underparts. Fully coloured only after 5 years, and patchy, intermediate plumages often seen. Unmistakable bird at close range or with favorable light, but can be confused with shearwaters at a distance and/or in strong wind. Differs from those by long tail and much longer neck and head. Alternates between powerful, even and shallow wing-beats and glides. Flight becomes more shearwater-like in strong winds.

Sound:

Heard mostly at breeding ground. Even, rhythmical series of harsh "harrr, harrr, harrr,".

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 Elias A. Ryberg,http://www.xeno-canto.org ,CC license