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American Crow (Corvus brachyrhynchos)

American Crow (Corvus brachyrhynchos)

American Crow (Corvus brachyrhynchos)



American Crow (Corvus brachyrhynchos) American Crow (Corvus brachyrhynchos)

Class: Aves
Family: Corvidae
Common Name: American Crow
Genus: Corvus
Species Name: brachyrhynchos

About The American Crow

Adult American crows are completely black birds weighing on average 450 g. The feathers have a glossy and slightly iridescent look. Crows have strong legs and toes. The bill is also black with a slight hook on the end. Stiff bristles cover their nostrils. About 20% of male birds are slightly larger than the females.

Young crows are about the same size as adults, but have blue eyes and pink inside the mouth. Both the eyes and mouth darken as the bird becomes an adult. In young birds, the ends of tail feathers are symmetrical and are more pointed than the wide, flat-ended feathers of adults. The wing and tail feathers of the young can become quite brown and ragged through the first winter and spring and only become darker and more glossy like adult feathers after the first molt.

American crows are often confused with common ravens. American crows can be distinguished from common ravens (Corvus_corax) most easily by size (ravens are much larger), by voice (ravens are hoarser), by the bill (ravens have heavier, "roman-nosed" bills), and by the shape of the wings and tails, which come to a point in ravens but not crows.

Average mass: 450 g.

Other Physical Features: endothermic ; homoiothermic; bilateral symmetry

Sexual Dimorphism: sexes alike; male larger

Average mass: 384.8 g.



Rights Holder: The Regents of the University of Michigan and its licensors
Bibliographic Citation: Parr, C. 2005. "Corvus brachyrhynchos" (On-line), Animal Diversity Web. Accessed September 16, 2012 at Citation Link

Trips Where Observed

Around The World in 66 Days
Moving the Car
Newfoundland
San Francisco 2007
Texas

Member Lifelists

California
Illinois
My Yard
New Jersey
North America
San Francisco
United States
World

Sites Where Observed

Location
Date
Notes
1/9/2007
3rd and Bryant St. On top of a billboard.
6/13/2007
Seen at Cape May Courthouse
1/12/2008
Cesar Chavez and Dolores
11/20/2010
In the cemetery portion.
7/10/2016
7/14/2016

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