Let it play out. They will start to mix it up.I think you're right. I have more little ones on order but nowhere to put them until I move this lot out. Ah well. Everything in good order! I am not having any crowing or behavioural issues @ all. Everything has gone remarkably smoothly. They aren't mixing much but that doesn't bother me. So long as they aren't drawing blood on each other I am more than happy.