Sciurus niger (eastern fox squirrel)
| Diet | herbivore (primarily) |
| Habitat | Open forests/edges. Often forage on the ground. Introduced to Oregon. |
| Description | Large orange-red squirrel, red-gray back (rarely, black or gray). |
| Skull Characteristics | Small P3 usually absent. All Sciurus tree squirrels have similar characteristics: Zygomatic arches mostly vertical, not twisted to horizontal as in ground squirrels. Skull more angular, less streamlined, with a more robust postorbital process than ground squirrels. |
| Notes | Links to more species information:
Smithsonian Animal Diversity Web |