I have 6 four month old hens and two roos that have been free ranging for a few weeks now. I do have a run, but I just leave it open so the can freely go in and out of their coop. Inside the coop I have 8 about 2 month old or so hens fenced off with chicken wire. That way the.older birds can see them but not get at them. Its been this way for a dew weeks now. Just wondering when I can let them all together. The founder birds are close to the same size. I have let them in together a few times but the older birds always peck and I get scared. Do I just bite the bullet and let them figure it out? Or should I wait linger?