Natural History: Allen's Hummingbird eats nectar and insects. It takes cover in trees and shrubs. It nests above ground often in shaded areas. It breeds in woodlands and dense scrub from mid-February to early August.

General Distribution: In the Presidio, this species can be found in dune scrub areas, Eucalyptus, Monterey Pine, and Monterey Cypress Forests and around ornamental plants. It breeds within the Presidio.

Frequency: This species is common in the summer, spring, and fall.

Identifying Characteristics: The males of the Allen's Hummingbird have green backs and orange-red throats. The females have green backs with reddish sides and tail bases.