I was recently given a couple hens from some friends who wanted out of the "chicken business." They've been together with my existing 5 hens for about a week with a bit of pecking going on. Well, it snowed about 6" last night so none of them would leave the coop this am. I came home to find the new hens had been pecked so much they were bloody and missing some feathers. I've separated the birds for the time being. I'm most concerned about lack of feathers and the subzero temps due this weekend. Any suggestions about injuries and keeping them warm yet separated?