The plumage of Carrion Crow is black with a green or purple sheen, much greener than the gloss of the Rook. The bill, legs and feet are also black. It can be distinguished from the Common Raven by its size (48-52 cm or 18 to 21 inches in length) and from the Hooded Crow by its black plumage, but there is frequent confusion between it and the Rook. The beak of the Crow is stouter and in consequence looks shorter, and whereas in the adult Rook the nostrils are bare, those of the Crow are covered at all ages with bristle-like feathers.
Habitat and Distribution
This species breeds in western and central Europe, another race occurs in eastern Asia. Crows have become highly skilled at adapting to urban environments. They occur in a Japanese cities.
Though an eater of carrion of all kinds, the Carrion Crow will eat insects, earthworms, grain, small mammals, scraps and will also steal eggs. Crows are scavengers by nature. They visit human habitation in order to feed on household waste.
They build a bulky stick nest which is placed in a tall tree, but cliff ledges, old buildings and pylons may be used as well. The 3 to 4 brown-speckled blue or greenish eggs are incubated for 18-20 days by the female alone, who is fed by the male.
Calls and Songs
The Crow's guttural, slightly vibrant, deeper croaked kraa call distinguishes it.