So, I currently have 6 12 week old plullets, and one 12 week old barred rock rooster. I got two adult Americana girls yesterday, should I separate them? They seem to do okay.. other than my rooster trying to show his dominance, I have two different coops for them, and the new girls will go in the coop and wait until the others are gone then come out and eat.. should I be concerned about this behavior? They also seem to hog the bigger coop, but I haven't seen any fighting.. yet.. just then one upping each other a little, need advice, thank you!!