I found this very helpful since I'm currently trying to integrate a couple of rescue roosters at the moment that I soft heartedly took on to add to my flock of 17 (with 4 cockerels) where everyone was getting on pretty well - just a young one causing trouble. Some initial fights have been bloody but cleaned up and ultimately no real injuries, but nobody seemed to be backing down quickly, so I broke it up with a soft broom. After this advice I may try and leave them to decide who's boss and be ready with the styptic powder. Otherwise, I'll have to decide who's going myself, and not looking forward to it but some things must be done to preserve my happy hens.