We have 6 pullets (6 weeks) and 4 guineas (5weeks) in our coop. We we did until this morning. One of our guineas was missing and I found it in the shed beside the coop yelling its little head off. I have been letting the chickens out to free range when i get home after work for a few hours before dark. I am hoping that he will buddy up with the chicks tonight and go back in the coop. O well, I was planning on letting them out eventually, but not for another month or so.