Crows are black birds known for their intelligence and adaptability, and for their loud, harsh “caw.” They also have a reputation for damaging crops; however, their impact may be less than previously thought. The genus Corvus comprises crows, ravens and rooks. These birds are all part of the Corvidae family, which includes jays, magpies and nutcrackers. Size There are about 40 species of crow, according to PBS , so there are many different sizes of crows. The American crow measures around 17.5 inches (45 centimeters). The fish crow measures around 19 inches (48 cm). The common raven is much larger and measures around 27 inches (69 cm). Crows can weigh anywhere from 12 to 57 ounces (337 to 1,625 grams). Rooks are smaller than crows and have distinct wedge-shaped tails and light-colored bills. They average 18 inches (47 cm) long. American crows differ from common ravens in several ways. Ravens are bigger; their voices are hoarser; and they have heavier bills, according to the University of Michigan’s Animal Diversity Web (ADW). Ravens’ tails and wings come to a point. Habitat Crows can be found all over the world in a variety of habitats. For example, the American crow lives all… Read full this story
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