I bought two young almost full grown Rhode Island Reds this past July. I was told they were young hens that would start laying in September. Well, recently one chicken started growing a large single comb and red loose skin thing under it's beak. Yes, I'm new to chickens. Living in our coop we have one bossy bantam game hen (head hen that's now broody), a large gray Holland Hen?, two EE Hens & the other Rhode Island w/small comb hen. Do I keep the rooster in the hen coop & pen. We also have six 6 week old chicks (we hope are hens) in a cage, waiting to be put in the coop & pen. We hadn't planned on roosters. Can they live together peacefully?