American Crows are common, widespread and adaptable, but highly susceptible to the West Nile Virus. The scientific name means literally short-billed crow. The American Crow is an all - black bird', measuring 40 to 53 cm (16 to 21 in) in length, of which about 40% makes up the tail. The body mass can vary from 316 to 620 g (11.1 to 22 oz). Males tend to be larger than females.This bird is one of only a few species that has been observed modifying and using tools to obtain food.
Habitat and Distribution
The range of the American Crow extends from the Pacific Ocean to the Atlantic Ocean in Canada, on the French islands of Saint-Pierre and Miquelon, and into northern Mexico. It is a permanent resident in most of U.S.A
It is omnivorous feeding on invertebrates, carrion, scraps of human food, seeds, eggs and nestlings, fish on the shore and grain. American Crows are active hunters who prey on mice, frogs
These birds build bulky stick nests in trees, bushes and three to six eggs are laid and incubated for 18 days.Mated pairs form large families of up to 15 individuals from several breeding seasons.
Calls and Songs
The most usual call is a loud, short and rapid caaw-caaw-caaw, birds thrust their heads up and down as they utter this call.