i have two hens (Rhoad Island Red and Buff Orpington) that have been together since they were chicks. About three.weeks ago I found my Rhoad Island Red with a hole in her back about the size of a quarter and deep enough for three quarters to fit in. I doctored her and made a chicken Saddle to help her heal. Then the next day she had a huge hole in the back of her head. I separated them putting the Buff in Chicken Prison for two weeks, where they could still see each other. I let them back in together and within a few hours her wound was red again. Then I started letting one free range and the other in the coop and yard. Changing each day. I did this for another week allowing my Red to heal. Today I put them together and within an hour the Buff had pecked out Reds feathers on her neck for about two inches. I don’t know what to try now. Can anyone help me?