Seen 25 October 2012 on the grounds of the West Virginia State Capitol in Charleston.
Apparently this is a common color variation of the eastern grey squirrel (Sciurus carolinensis), but I haven’t seen any of them around Clarksburg. If they’re here they must be shy. Or maybe our little red squirrels have scared them off.
This one was tame enough to let me come quite near, but usually bounced or scurried just as I pressed the shutter. As a result I have several pictures of unidentifiable furry black patches in the grass where the squirrel had been quite clearly visible less than a second before. The image above was the best I managed before I had to leave. Click on it to enlarge.