So sorry! Our current bantam chicks were raised in a separate but visible coop area, and gradually opened up to the flock while everyone was free ranging, when they were six and seven weeks old, fully feathered, and locked in their brooder area every night. After a week or ten days, their area is open to the main coop at night too, and they still go there, on or under the brooder plate at night.
I watched carefully during the blending weeks, and no issues came up. Lucky, maybe, but all is well here.
Having broody raised chicks is much easier!
Mary