My hens are 4 months old now...no eggs yet. When the Hatchery sent my baby chicks, I thought they would be all hens but not so. Neither have been aggressive so far and I visit them almost daily. I kinda think I am their Daddy! I find a hen or rooster trying to act out,, I correct them right quick. Remember...In order to train a Dog, You gotta be smarter than the Dog. YOU are in CONTROL...so we'll see how the two get along.