Diet Overlap

Tamiasciurus douglasii (Douglas's squirrel)
Tamias ruficaudus (red-tailed chipmunk)

Common Diet

Acer glabrum (Rocky Mountain maple)
Pinus ponderosa (Ponderosa pine)
Pseudotsuga menziesii (Douglas fir)

Common Habitat

North America
Palouse grasslands

Attributes / relations provided by
♦ 1Tamiasciurus douglasii, Michael A. Steele, MAMMALIAN SPECIES No. 630, pp. 1-8 (1999)
♦ 2Tamias ruficaudus, Troy L. Best, MAMMALIAN SPECIES No. 452, pp. 1-7 (1993)