|Abert's squirrel in ponderosa pine.|
They just eat their favorite tree, ponderosa pine, which happens to be my favorite tree too, although I rarely eat any parts. (The pollen is a tonic, though.) Colorado Parks and Wildlife says, "Abert’s squirrel does not hoard food, but eats whatever part of its host tree, ponderosa pine, is available in season: cones and inner bark of twigs."
Many are a sort of salt-and-pepper grey (like these), but in southern Colorado they are mostly black. I think I have seen one grey one near the house in twenty years.
|This degenerate squirrel has abandoned its healthy wild lifestyle|
to eat sunflower seeds under the bird feeder.
|James William Abert|
Together with collecting specimens, he also discoursed in the 19th-century manner on color theory for artists interested in natural history.
You can see Lt. Abert's reconstructed room and sketchbook at Bent's Old Fort, where he (and Everyone who was Anyone) stayed c. 1846.