Appearance:

Small green and yellow finch with contrasting dark wings and tail. Underparts whitish with grey streaking. Secondaries, inner primaries and outer tail feathers with yellow base. Relatively long and pointed bill as opposed to Serin. Male distinct with black crown and bib, bright yellow chest, throat and hind-cheeks. Female less contrasty, with more prominent streaking. Juveniles paler and duller than adults, with even heavier streaking than females.

Sound:

Distinct calls and song. Most often heard is the sharp and disyllabic contact call: "doo-lee", with both notes descending. Sometimes given a in monosyllabic manner "dlyy". The contact call is also prominent in the improvised song. Other typical sounds in the song includes a peculiar wheeze, like someone sucking their teeth, and lots of expert mimicry.

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 black plumage, red legs and relatively short and straight, yellow bill. Note that immature Red-billed Chough has yellowish-brown bill, but never as pure yellow as in Alpine Chough, and the whole bill is curved. Easily confused with Red-billed Chough at a distance where both species occur, but note more narrow, less fingered wings, and longer, more rounded tail. Resembles Jackdaw in size, but flying Alpine Choughs differs by two-toned underparts of wings (darker coverts). Flight acrobatic, but a little more stilted than Red-billed Chough.

Sound:

Diagnostic and very different from Red-billed Chough. A sharp, quite high-pitched, whistling trill "chreeeee". Usually alternated with pure-toned high-pitched whistles, falling abruptly in pitch with a "clipping" ending.

Contact 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