Appearance:

Adults black, or dark grey with big white/off-white, crescent-shaped chest patch. The light grey fringes to the flight-feathers gives the whole wing a silvery look, especially in flight. Juveniles have a more brownish base colour, with lighter scaly underparts and just a vague chest patch. The whole bird gives a more slender impression than Blackbird, and the wings are longer. Flight more determined and direct than in Blackbird.

Sound:

Alarm call a series of "chok-chok". Thicker and more resonant than Redwing. Song a primitive, plaintive series of short phrases. Often with only one or two syllables. Interspersed with eerie, higher pitched sounds, reminiscent of Song Thrush.

Song:

Distribution:

Xeno-canto: map

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:

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