I have 11 chickens - Silkies and Sumatras. When we got them all we new we had 4 hens but the rest were to young to tell. Now they are older and of the 11, I know for sure that 5 are hens and 4 are roosters. The remaining two are still to young to tell. 2 of the 4 roosters have become dominating and aggressive toward the hens. My husband says that I have too many roosters and I should get rid of a couple before they hurt each other. I do let them all free range during the day, and they all voluntarily go into the coop at night to roost. So they are not cooped up all day. So my question is: How many roosters are too many? Thank you for your help!