I will search for a Vet office and bring him in for some treatment or an ER clinic for results. Glad I’m he does not have flees presently, as I comb him and check with flea combs. Those things are terrible as for infestations go and I love Food Grade DiatomaceousEarth for getting rid of that mess. My neighbor is a farmer who lives offsite and does not visit, more or less he picked up this cat some years ago and it only gets put in doors when they spray chemicals on the crops. I was worried with cold weather approaching and any injuries present much less bald spots like this. They either seen this on his tail by now or would have got him help. In his words he is just a friendly stray, pretty sure he is fixed but I will bring him in and get everything covered. He will be okay though I will make sure of it just wanted to get some insight on this. Could be days or sometimes a week or two before I see him day or night, but I will always watch for him and over him. Thanks again for your time and care you give in this field. The donation links did not work for me paypal related / sign up email Have a great day, take care.