Smithsonian National Museum of Natural History, North American Mammals
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Tamias cinereicollis

Gray-collared Chipmunk

Order: Rodentia
Family: Sciuridae

Image of Tamias cinereicollis
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Conservation Status: Least Concern.

Gray-collared chipmunks are found only in coniferous forests, at elevations of 1,950-3,440 m. They eat all kinds of vegetation, and collect and store acorns underground or in hollow logs. Their tracks are often seen in the snow, but they probably remain in their dens during the coldest months, sleeping or feeding on their cache of acorns. One litter, of 4-6, is born a year, usually in June in a nest under a log or stump. Nests have also been found in woodpecker holes in trees. When they are 36-40 days old, the young begin eating solid food, and less than a week later, stop nursing. By fall, they are almost fully grown.

Also known as:
Ash-colored Chipmunk

Sexual Dimorphism:
Females are slightly larger than males.

Average: 224 mm
Range: 208-242 mm

Range: 55-70 g


Allen, J.A., 1890.  A Review of some of the North American ground squirrels of the genus Tamias, p. 94.  Bulletin of the American Museum of Natural History, 3:45-116.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Tamias cinereicollis

Image of Tamias cinereicollis
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