The big chipmunks are less graceful than their livelier, smaller cousins; they are unsuspicious and easily observed, and are very popular with park visitors because of their obvious lack of timidity. They are quick to adapt themselves to the proximity of humans, and sometimes become nuisances about campsites and dwellings because of their audacious thefts of various foodstuffs.
The capacious cheek pouches are used in collecting seeds, nuts, roots, berries, and the bulbs of various plants, which are stored in underground caches. Although these ground squirrels hibernate from early fall until late spring, forage is meager during the first few weeks after emergence from their long winter nap, and without provision for these lean times, the animals would surely starve. They often appear when the snow is still deep over their burrows, digging several feet upward through this white blanket to emerge on the surface.
The most dreaded enemy is the weasel, but the ground squirrels are preyed upon by coyotes, foxes, and hawks as well, since they are a staple item in the diet of most predators.
DOUGLAS PINE SQUIRREL, CHICKAREE
Tamiasciurus douglasii douglasii (Bachman)
A dark grayish brown squirrel about twelve inches in length overall; with prominent ears; moderately slender in form; tail almost as long as the body, somewhat flattened, well clothed with hair but not bushy, more gray than the body. The underparts vary from a pale yellow brown to reddish brown. The sexes are colored alike; the pelage is fairly long, soft, but not silky. The characteristic appearance is one of extreme alertness.
Common throughout forested sections, the Douglas pine squirrel is a vociferous bundle of energy.
Specimens in park collection: RNP-10, RNP-11, RNP-15, RNP-47, RNP-100, RNP-107; Longmire Museum, Park Headquarters.
The Douglas squirrel is classified as one of the red squirrels, or chickarees, which are distributed over most of forested North America.
In Mount Rainier National Park these squirrels are common, and are found throughout the area from the park boundaries to forest line, and occasionally even higher.