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Sciurus arizonensis

Arizona Gray Squirrel

Order: Rodentia
Family: Sciuridae

Image of Sciurus arizonensis
Sciurus arizonensis
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Conservation Status: Data Deficient. This species occurs in several isolated locations.

Walnuts are a favorite food of Arizona Gray Squirrels, and when they find an abundance, the squirrels soon stain their faces, paws, and undersides a distinct brownish-orange from walnut juice. Other foods eaten may include fungi, acorns, juniper berries, pine seeds, and tree flowers and buds. This species is quiet and secretive and rarely seen. It is not very common and has a limited geographic distribution. Within its range, Arizona Gray Squirrels prefer broadleaf forests along rivers, which commonly occur in canyon bottoms.

Sexual Dimorphism:

Range: 455-574 mm

Average: 655g
Range: 527-884 g


Coues, E., 1867.  The quadrupeds of Arizona, p. 357.  The American Naturalist, 1:281-363.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Sciurus arizonensis

Image of Sciurus arizonensis
Click to enlarge. (74kb)