Habitat
Dense, mixed-broadleaf communities of a riparian-deciduous forest. Usually, the species is restricted to elevations of 1,500 to 1,900 meters above sea level. Favored habitats are groves of old cavity-prone Arizona sycamores and other large deciduous trees.

Description
gray in color throughout most of its upper body. Patches of yellow are sometimes present behind the ears. The tail is black dorsally and yellow to brown ventrally. The two sides of the tail are separated by white edging, and the underparts of the squirrel also are white. The squirrel's gray pelage darkens during the winter, and its underparts and feet are often stained from walnut juice (see Food Habits). The total body length for the species, including the tail, averages 21 inches. (Best and Riedel 1995) (Cockrum 1992) Source: Munoz, P. 1999. "Sciurus arizonensis" (On-line), Animal Diversity Web.
Accessed February 19, 2007, at animaldiversity.org

Comments
See also Rock Squirrel. The Arizona gray squirrel is listed as a "Category 2" species, which is reserved for taxa that may be eligible for threatened or endangered status.