If you have enough juvenile birds to put into a flock, the chance of them being beat up a lot are low. One or two, that will probably be more likely. A banny egg is about 3 times smaller than your average chicken egg. It takes awhile for a flock to reorder its pecking order, but it happens eventually. The only danger are roosters that are raised together than separated and re-united. They will fight to the death. And it is brutal one, usually being pecked to death, usually starting with the eyes. I butcher excess or mean roosters that are too many for the flock of hens.