My 12 wk old chick who is as tall as my banty cochin, but not nearly as wide, free ranged, with my banty cochin, and my EE today. No pecking, except when I went out to check on them. So. I put Lenore (12 wk old) on the roost with the bigger chickens today. My EE attacked and attacked. So, what I did, was I put Gordita under the nesting boxes, where Lenore's roost is, where a chicken can't get out, or in, without a human, or something with opposable thumbs. The heat lamp is turned off, because when it was on, Fajita (Banty) would slowly edge over to Lenore, and nip at her. For some reason, Fajita also bit me, which is strange, this was the first time I have ever been bit by one of our chickens. Anywho. I'm going back to put the heat lamp on, once it's dark and they are asleep - ish. Right now nothing is going wrong, but I just wanted to check to see if they are sleepy enough, even though there is a light, will they kill each other?