We have a pen where we keep big mama (BO hen) and her 3 1/2 month chick, which we found out is a rooster. Also in the pen is skint back (BO hen) and her 1 month old chick. Yesterday, I noticed the rooster jumped on his mama's back, bit her on the head and was acting like he was mating with her (as my big rooster does). I'm thinking it might be time to separate the rooster from the mama? Also we have 5 chicks inside, all born over the last few weeks. My husband wants to put all the chicks together, including the one month old chick as mentioned above. Wonder if that's a good idea? He wants to put the mama's back with the flock (10 buffs and 1 mutt, but gorgeous, rooster).