Hi, My rooster has picked out his back feathers - the feathers at the base of his back. I assume that he is picking his own feathers...maybe not. I have a lot of trouble with my hens picking their neck feathers out. I have searched for mites and don't see anything crawling on them. I do see a lot of white specks on them at night when I look with a flashlight but nothing moving. I figure the white specks are dirt? Any suggestions. Thanks.