My twelve and a half week old Buff Orpington roosters are starting to crow loud and frequently. At least two are chasing hens and biting their back feathers. The problem with crowing is that I live with neighbours who may not appreciate the noise. I have 7 roosters and 9 pullets. The coop is 60 square feet and the run is 72 square feet. The long term plan is to have just 5-6 hens. Trouble is that the roosters still feel thin. Not much meat on them yet. I really want to hold off on butchering as long as possible to let them grow bigger. If I culled just the three biggest roosters do you think it might reduce the aggression to the hens and the amount of crowing? Do roosters crow more often or chase hens more, if there are too many roosters together?