Tamiasciurus douglasii (Douglas squirrel, spruce squirrel)
| Class | Mammalia |
| Order | Rodentia |
| Family | Sciuridae |
| Genus | Tamiasciurus |
| Species | Tamiasciurus douglasii |
| Common | Douglas squirrel, spruce squirrel |
| Diet | herbivore and generalist |
| Habitat | Coniferous forests of the Pacific Northwest, including western Oregon and northern California. |
| Description | Reddish tree squirrel, smaller than S. niger. Distinguish from T. hudsonicus by more orange color on belly, white-tipped tail hairs, and by range. Dorsal coloration more gray in winter. T. hudsonicus and T. douglasii ranges overlap in northwestern Oregon, where there is some intergrading of characteristics such as ventral coloration. Our specimens from the Lassen, CA area have white ventral coloration. |
| Skull Characteristics | Rounded with slender, laterally compressed rostrum, very wide interorbital region, and depressed braincase. Rostrum shorter than Sciurus species, nasals shorter, broader and triangular. Braincase larger in proportion than Sciurus. |
| Notes | Links to more species information:
Smithsonian Animal Diversity Web |