For chicks: Do you like to brood them in the coop so they know each other? Do you like to put them in adjoining runs? Cage them separately in the coop? Me personally I like to brood them together and I let them spend supervised time together. They start out with my most gentle girl and slowly allow the chicks to free range in the coop. By the time they are fully feathered I just open the cage door and let them mingle. Haven't had any problems yet .