Smithsonian National Museum of Natural History, North American Mammals
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Tamiasciurus douglasii

Douglas' Squirrel

Order: Rodentia
Family: Sciuridae

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Image of Tamiasciurus douglasii
Tamiasciurus douglassii - upper two images, summer coloration on left, winter on right (shown with T. hudsonicus)
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Conservation Status: Least Concern.

Douglas's Squirrels are small, energetic, and very active during the day all year long. They spend many hours collecting and storing green pine cones to eat during the harsh winters. Each squirrel builds several nests, including an underground nest for winter use. They usually breed from March to June, and sometimes again in late summer or early fall, and other than that, are solitary. Females have eight teats, and litters of eight have been recorded, but litters of 4-6 are more usual.

Also known as:
Chickaree, Spruce Squirrel

Sexual Dimorphism:

Range: 270-348 mm

Range: 141-312 g


Bachman, J., 1839.  Monograph of the species of squirrel inhabiting North America, p. 99.  Proceedings of the Zoological Society of London,  85-103.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Tamiasciurus douglasii

Image of Tamiasciurus douglasii
Click to enlarge. (97kb)