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:

Male told from Tree Sparrow by grey crown, grey cheeks with no cheek-patch, larger black bib and grey rump. Female rather featureless, and thus not likely to be confused with Tree Sparrow. Confusion with female Scarlet Rosefinch possible, but underparts unstreaked. Profile of House Sparrow differs from Tree Sparrow by larger, less rounded head and less heavy bill.

Sound:

Most calls very similar to Tree Sparrow, but lacks said species' distinct high pitched call (chew-itt), and alarm call is less dry and raucous. Song a primitive, monosyllabic, or slightly disyllabic "chilp", hard to distinguish from Tree Sparrow.

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

CC-sound:Timo S., Licence,Link.