Appearance:

Adult male unmistakable if seen well. Body and head bright yellow, lores, wings and tail black. Females and young males less distinct, with lime-green back, pale, streaked underparts and black wings and tail. Bill quite strong with reddish colour in adults, and grey in young birds. Despite the bright plumage the bird is difficult to see due to skulking behaviour in foliage. Usually spotted when moving from tree to tree in undulating flight. Then resembles a large thrush or woodpecker, quickly darting upwards into the next tree-top.

Sound:

Varied repertoire, but song and common contact call very distinct. Song a series of 1-2 seconds long phrases of 3-5 yodeling, clear, fluting notes, interspersed with 2-3 second pauses. Tone very full-bodied, melodic and pleasing. Contact call surprisingly different: A forced, drawn "weeackt", slightly resembling Jay, but less harsh, and much more nasal. Other sounds include a Wryneck-like warning call.

Contact call, 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

Appearance:

All white wingtips like Iceland Gull. The following characters applies to all ages: Told apart from Iceland Gull by angular head profile, proportionally shorter wings and long, heavy bill. Bill longer than half the length of head, and shows prominent hook. Primaries extends just about past tail in sitting birds, and the whole rear of the bird seem heavier. Eye smaller than in Iceland Gull, with a stern expression. Comparison with nearby Herring Gulls fruitful. Iceland Gull often smaller than Herring Gull, and less heavy, while Glaucous Gull usually larger. Impression reinforced by Iceland's agile maneuvering.

Sound:

Like Herring Gull.

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:Jarmo Pirhonen, Licence,Link.