I went back to see Tubby again today, as I have resolved to spend more time with her. While there I also saw the two silver-backed babies that showed up early in the summer. They are still small and still have the silver color on their backs, which surprised me, as I thought they'd be gray by now. They have so little pigment that they look like ghosts.
I also saw Golden Squirrel, and am sorry to say she looks a mess. She has pink spots all over her back where she's lost fur. I guess it's mange. Need to feed! I gave her an assortment of nuts and will see what happens.