I have a 10 month old female California Ground Squirrel who we are raising after her mother died. We have had her since she was a few weeks old. She is wonderful and healthy, but has lately developed bald pattern around the base of her tail. I am wondering if captive squirrels manifest over-grooming or some such behaviors that might explain it. The skin looks really healthy, so does not look like it is infectious in nature. To my knowledge, she has had one heat. I do not see her fussing with it, so if she is, it is being done 'privately.' ;) If anyone has suggestions, I would be grateful. Thx