I have a Silver Fox doe that has a strange patch of sparse hair between her shoulders right behind her ears. At first I though it was from the buck pulling a bit out from breeding, but it hasn't started to grow back and is slowly getting bigger. Her ears are totally clear so I wasn't thinking it could be mites, but I have never dealt with mites before so someone correct me if I am wrong. Also the skin looks normal and healthy and not flaky as I would expect with mites. any suggestions?