• East view from Crissy Field overlook with old Coast Guard station on left and city on right

    Presidio of San Francisco


Western Harvest Mouse

Harvest Mouse
A Harvest Mouse.
Dr. Lloyd Glenn Ingles, California Academy of Sciences

Natural History: This small rodent is active year round and is primarily nocturnal. It is omnivorous but feeds primarily on seeds and some insects. This species nests on or slightly above the ground in tall vegetation. It breeds in all months but January through March.

General Distribution: In the Presidio, the Harvest Mouse is found in annual grassland areas, coastal and dune scrub, forests with blackberry thickets, and in Monterey Pine Monterey Cypress woodlands.

Frequency: This is an abundant species within the Presidio.

Identifying Characteristics: This species is a pale gray to brownish color with a white to gray underside of body and tail.


Did You Know?

Albert Sidney Johnston

Colonel Albert Sidney Johnston, commander of the Pacific branch of the army, prepared the defenses of the San Francisco Bay and ordered the first garrison of Fort Point. Kentucky-born Johnston then resigned his commission to join the Confederate Army; he was killed at the battle of Shiloh in 1862.