It astounds me still how recovered Gimpy is--most times I can't even tell who she is until she turns and I see the stiff foot. I watched her hang off a tree by her hind feet, sunflower seed in hand, and she doesn't seem to notice that she's hanging by a single foot. And they have amazing ankles.
*I was reading last night that evidentally female squirrels have extremely large clitorises, making confusion easy for the casual squirrelwatcher. I suspect from this that Notch may have been a girl as well, although I haven't seem him/her recently enough to tell.