I have six week old chicks that are getting cramped in their current location. I have a huge chicken yard and coop that houses 13 hens . I can open the yard up so they can free range too. i am considering letting the older girls out to free range and putting the six week old chicks (13) in their fenced run for the day. They would be separate but could see each other. Then I was going to try to get them all in the same coop for the night. Does this sound feasible? or like a big mistake?