Western Deer Mouse

Western Deer Mouse (Peromyscus sonoriensis) is in the Hamsters, Voles, Lemmings, and Allies family (Cricetidae). Across the U.S., iNaturalist users have logged 2,139 research-grade observations of it in our sample, peaking in July.

Seasonal pattern in the national data: year-round resident. Counts also reflect when people are out photographing, so compare months within a state rather than across states.

When to photograph Western Deer Mouse: observations by month (U.S.)

About Western Deer Mouse

The western deermouse or western deer mouse (Peromyscus sonoriensis) is a rodent native to North America. It is widespread throughout the western half of the continent, mainly in areas west of the Mississippi River.From Wikipedia via iNaturalist — article, CC BY-SA.

Western Deer Mouse by state

Main season = months with at least 30% of the state's peak-month count.

Related mammals (Hamsters, Voles, Lemmings, and Allies)

MuskratOndatra zibethicus

Hispid Cotton RatSigmodon hispidus

White-footed MousePeromyscus leucopus

Eastern Meadow VoleMicrotus pennsylvanicus

California VoleMicrotus californicus

Dusky-footed WoodratNeotoma fuscipes

Bushy-tailed WoodratNeotoma cinerea

Photography tips

• Keep a legal and safe distance: 100 yards from bears and wolves and 25 yards from other large animals in national parks.
• Dawn and dusk are peak activity times for most mammals.
• Use your car as a blind on wildlife drives.

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