I have 7 hens and a rooster. I think I'm going to get 3 more hens. I want another BO and 2 BR's. I don't see a problem with that number. I agree that the water would be the telling point. As far a chickens being your friend, not all have the same personality. Some are friendlier that others so just treat them all like chickens and the ones that want to cozy up some just accommodate um enjoy all of your chickens. I do.