I recently moved my 15 week olds into the coop with the 6 year olds. And for the past 3 nights, they actually put them selves away with them instead of going into the tack room. So, yesterday, my now 4 week olds escaped from their playhouse that I let them play in during the day. At night they have been sleeping in the tack room in a lizard aquarium. They actually have outgrown both, and free range during the day with all the girls. So, this morning, I threw them in the coop with the rest. Well a couple pecks, but for the most part they are just leaving them alone. So, I think they are going to be fine. I'm so happy because they were too big for their temp cages. The 4 week olds, Hay and Bale, have been sleeping in the tack room for a couple weeks now, without a light with temps into the 50's at night and 60-70 during the day.