Hes new and put him in brood pen yesterday afternoon and for the 1st 2 hours my BR roo and him fought through the chainlink fence. BR roo eventually left and didn't go to that area again. Looked in on SS roo at roost-time and he was tucked up with blood on his comb. Goodness I may never be able to introduce him into the loose flock if they don't adjust. Also have a mixed cockerel that stayed clear of the whole thing so he's OK. What have I done...........I pray I get some SS chix out of this at least.