Appearance:

Very similar to Hooded Crow, apart from the all black plumage. Easily confused with young Rooks, since these lack the naked bill base and baggy trousers of adults. Carrion Crow differs from Rooks by deeper bill with a more curved upper mandible (bill of Rook conical). The wings are evenly broad, not more narrow closer to the body (difficult to judge). Carrion Crow shows no hint of crest, as is often seen in Rooks. Differs from Raven in less deep bill, no neck ruff and rounded, not wedge-shaped, tail.

Sound:

Probably impossible to tell from Hooded Crow by sound with certainty, but tends to sound harder, and more mean.

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:

Large and bulky diver with yellow or whitish, heavy bill and square head profile with steep forehead. Usually holds bill uptilted, not pointed straight like Great Northern Diver. Summer: White underparts and chequered black back. Black head and neck with white horizontal band. Winter: White underparts and grey back. Neck usually much more diffusely marked than in Great Northern Diver. Heavy goose-like flight.

Sound:

Song similar to Great Northern Diver, but slower and harsher. Not very vocal.

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

CC

CC-photo:Seabamirum, Licence,Link.

CC-photo:Bering Land Bridge National Preserve, Licence,Link.

CC-sound:Andrew Spencer, Licence,Link.

CC-photo:jerryoldenettel, Licence,Link.