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:

An almost featureless, large warbler with greyish brown upperparts and buff underparts. Lack of distinct characters is a character! Most distinct character is probably the faint, slate grey half-collar. Vent has no markings, eye is dark and bill is relatively short. Body quite plump, and facial expression gentle and mild. Usually stays hidden in foliage. Lacks nervous behaviour of other Sylvia, and does not normally flick its tail and wings.

Sound:

Song: a full bodied, flowing, melodious stream of notes, distinguished by its almost constant, warbled quality and lack of clear whistling notes (see Blackcap). Tempo is fairly even. Beware confusion possibility with occasional subsong of Blackcap that never reaches the whistling part! Call a nasal "che". Alarm call a hard "check", and a hoarse "tcherr".

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-photo:Billy Lindblom, Licence,Link,

CC-photo:themadbirdlady, Licence,Link.

CC-photo:Martha de Jong-Lantink, Licence,Link.