Welcome to BYC. Glad you decided to our flock. X3 on 10 hens for every 1 rooster. As they mature, too many roosters will become very hard physically on your hens, over-breeding them, biting and plucking the feathers from their necks and backs, battering them, and potentially, seriously injuring them. The only reason you need a rooster is to fertilize eggs for hatching, and 1 rooster can easily handle 10 hens in this regard. I currently have 25 hens and no roosters in my flock, and I get loads of eggs without all the aggression, fights, biting and feather plucking, feeding of non-productive mouths, crowing in the middle of the night, drop off in egg production due to stress, over-breeding and battering of hens due to having roosters (especially too many). My hens are stress free and enjoying life without a rooster around. Please feel free to ask any questions you may have. We are here to help in any way we can. Good luck in thinning out your roosters.