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Presidio of San FranciscoRaven on coastal bluffs
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Presidio of San Francisco
American Crow
(Corvus brachyrhynchos)
 
American Crow
Will Elder, NPS
An American Crow looks for food at Crissy Field.
 

Natural History: The American Crow eats nuts, fruits, insects, bird eggs, nestlings, carrion, garbage - after which it ejects pellets. Nesting in somewhat of colonies, it builds nests of stick platforms lined with mud and vegetation, usually in trees. Nesting season is from March to July. This species is very gregarious in winter.

General Distribution: In the Presidio, this bird is found in all forested areas and lawns. At present it has the potential to breed in the Presidio.

Frequency: This species is common all year in the Presidio.

Identifying Characteristics: This crow is completely black and large in size, but not as large as the similar Raven. It does display a purple gloss in the sun. Crows are gregarious by nature.

Presidio Birds main page

Jonathan Letterman  

Did You Know?
Major Jonathan Letterman--after whom the hospital at the Presidio was renamed in 1911--was the medical director of the Army of the Potomac. A founding father of military medicine, Letterman organized forward first-aid stations, mobile field hospitals, and ambulance services during the Civil War.

Last Updated: March 14, 2008 at 16:02 EST