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.