Appearance:

Unmistakable, if not in silhouette. In poor light or at a distance, when the grey plumage is not visible, confusion with other crows is possible. Bill is deeper than in Rook, and the upper mandible more curved towards the tip. Smaller than raven, and much less heavy bill. The wings are shorter and more rounded, and the tail is not wedge-shaped. Posture less upright than Rook.

Sound:

Cawing is aggressive and more raucous than in Rook, with more rolling r's. Has a large repertoire of seldom heard calls, and even sub-song. Many of these calls are surprisingly resonant and pleasant sounding, and sometimes resembles Raven. Probably impossible to tell from Carrion Crow with certainty by sound alone.

Cawing:

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:

A featureless, bulky bunting. Larger than Yellowhammer, but with a shorter tail. Combination of size, build, flight-pattern and sound important for identification. Recalls the bigger larks in build. Takes off with a loose and surging flight, often with legs dangling underneath. Undulations particularly strong just before landing. Wings dark, and tail without white feathers or markings. "Tooth" in upper mandible visible at close range when singing. Bill and legs yellowish pink. Often shows an indistinct, dark breast patch.

Sound:

Song diagnostic. A brittle, jingling and accelerating phrase of about 2 seconds duration. Repeated in a monotonous manner, to form a typical soundscape of fields where it is numerous. Often compared to the sound of a chain of small keys. The phrase starts with a few staccato, ticking sounds that progress into a dry trill, followed by a short ritardando. Calls with a dry "chep" or a brittle "vitt".

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