Let me see if I can explain this without being too long. Last year we bought and raised 8 Dominique Cross chicks (in the end, due to wild animal attack and disease, we ended up with 4-1 roo and 3 hens.) We propagated our four and had 9 hatch, 2 roos and 7 hens. I had the parents and the children separated until a week ago. With temps starting to go down, I moved everyone into one coop. Here's the issue. I moved the children (who are now 7mos) into the coop first (they were in a chicken tractor for the summer.) These guys needed to get off the ground asap. They were in the new coop for about a week before the temps got really cold, and we decided that the parents needed to be in the big coop with them (their summer quarters weren't ready for the temps to be in the teens yet). Ever since then, the 2 children roos have beaten up their dad. They tag team him, and this is a rooster that is bigger and ornery to the point where he comes after us. Dad could take his boys out. If he tried. But he's not trying. Dad has been through a lot-survived a wild animal/dog attack and coci or an equally nasty disease. His genes are really good. We don't want to get rid of him, but we want him to be a bit more comfortable. I took the two younger roos out this morning (we do have a plan to get rid of at least 1 of them, but our plan is to breed and sell chicks on a small scale, so I wanted to have some diversity in the gene pool), but their girls all jumped out to be with them. Any advice? The only other thing I can think of is to remove dear old dad and his girls back to their summer digs and make it more winter ready.