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.


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