Appearance:

Large gull with deep chest, light grey back and heavy yellow bill with red spot (adult). Pinkish legs and black tipped primaries with white windows. Winter plumage with streaked head and neck. Develops grey mantle in 2.nd winter. Young birds may be difficult to distinguish from juvenile Greater- or Lesser Black-backed Gulls, and the species shows notable variation in both plumage and size. Juveniles generally shows darker head and less contrasting markings than Greater Black-back, and pale inner primaries (window), as opposed to the all black hand of young Lesser Black-backs.

Sound:

Quite vocal. A long and strong "ay-kay-kay-kay-kay" with fading strength commonly heard. A deep "ga-ga-ga" heard from anxious birds. All calls much deeper pitched than Common Gull. Difficult to distinguish from Lesser Black-backed Gull, but tone is less nasal.

Contact call and 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

Featherbase

CC

CC-sound:Jens Kirkeby, Licence,Link.

Appearance:

Small bustard about the seize of female pheasant. Stocky body, small head, slender neck and fairly long legs. Male: Grey head, black neck with two white rings, finely vermiculated upperparts and white underparts. Odd short p7 in male. Female lacks black neck and all upperparts are a vermiculated sandy brown. Young and non-breeding males similar to females, but often with a hint of white breast-band and more clearly defined white underparts. Told from Great Bustard in flight by clear cut black wing-tips and primary coverts in sharp contrast to white wing, and white secondaries. Flushed birds take off in noisy, grouse-like manner with rapid wing-beats and interspersed short glides on bowed wings. Longer flight with quick wing-beats mostly below level of back.

Sound:

Wings in male produces a whistling sound when flying and in display flight. Flushed birds give a hoarse grunt "ugh". Female sometimes utters e mewing "miee". Male song a short and dry "prrrt", that is far reaching. Given from ground in display in 5 - 10 seconds intervals with raised neck-feathers and jumps in the air.

Song, wing-noise:

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-photo:Viskens Michel, Licence,Link.

CC-photo:Hans Verdaat, Licence,Link.

CC-photo:Viskens Michel, Licence,Link.

CC-photo:Pedro N. Ramalho, Licence,Link.