This is my first post as I am relatively new to squirrels but need help please. I have been feeding wilds on my balcony for about 3 months now, I have about 20 that visit daily. Amongst them is a young fox squirrel, I am unsure of age but I would guess under 1 year old, as he is the smallest of all our visitors. About two weeks ago I noticed he had hair loss on the nape of his neck, but it is slowly spreading down his upper back. The skin seems a bit red and I was wondering if it is mange? Could anyone pls help to diagnose and advise what I can do to help? I would really appreciate it. The problem is that he or she I am not even sure, is scared and will not come close. Most of my other wilds are trusting and can be hand fed. I managed to get a few pictures but they are not sharp as I had to take them from a distance otherwise he would run. Hopefully they are good enough to tell what is going on with him.
Thank you so much
~Sarah