She's a red squirrel, which is easy to tell by the reddish fur on her belly and the underside of her little legs and arms. I've heard reds also called Fox Squirrels. I guess they vary in color from red to black to gray depending on the part of the country they're from.
Here is one of the two black Fox babies I fed.
With their square heads and noses they look like newborn black lab puppies to me.Guess the more common squirrel in this area are called Grays. That would explain why 99% of the close to 1000 orphans at the Wildlife Rehab are Grays. These Foxes are a rare treat.
The Fox babies are fuzzier on their heads, and when you hold them you can tell their fur is thicker and softer. Grays have white undersides and when mature their hairs are tipped in a grayish color.
In the wild adults feed twice a day --mornings and early evenings -- are quiet in midday. I think they turn in early, as when I walk the park where they are abundant I never see any if it's nearing sunset. Anyone who's watched a squirrel for long knows how these high energy critters are a source of endless amusement.
They build nests high in the tree branches or den inside hollow trees. Once I learned that I began craning my neck as far back as I could, squinting at the oak branches and sure enough, here and there I could see decent sized hammocks made of leaves, bark and grass.
They mate in spring and fall and the babies take 40-45 days to gestate. Usually 2 or 4 babies are born --naked, blind and helpless. They stay in the nest, nursing for about 6 weeks, during which time their eyes open and their teeth develop enough to try solid food. They stay with the family for about a month learning to forage and are almost full adults by 6 months. By 12 months they're having babies of their own.
I think we need to have a caption contest for that first picture. Care to try your hand in the comments?