I have two BA's that are 6 months old and very large. Started laying a month ago. I recently go two BO's that are now two and a half months old. I introduced the BO's into my chicken tractor yesterday while did some work on my yard. When I returned (an hour later) one of the BO's was on the ground with its head pressed against the 2X2's. I thought it was dead but when I clucked it raised up and to my horror his cone had been pecked almost half off and he was bleeding a bit. The other, a female, had a few feathers missing on her back. I removed them and let the BA's in the tractor. The BO's are about half the size of the BA's. Help, what should I do? Thank you!