Carrion crow

The carrion crow, Corvus corone, is an all-black corvid of the family Corvidae, native to western Europe and the eastern Palearctic, including the mountains, forests and cities of Japan. Its plumage carries a green or purple sheen, and it measures 48 to 52 centimeters long with an 84 to 100 centimeter wingspan and weighs 400 to 600 grams, with a black bill, legs and feet; juveniles are brownish with blue eyes that darken with age. It is larger and stockier than the American crow, distinguished from the hooded crow by its all-black coloring rather than grey-and-black markings, and occupies a niche in Eurasia similar to the American crow role in North America, competing with gulls, other corvids and ducks for food around people. The species is noted for its intelligence, able to discriminate numbers up to 30 and recognize both human and crow faces, and is listed as Least Concern by the IUCN.