We are in the process of integrating the baby chickens with the older chickens. I moved the chick pin outside but decided the two flocks needed to be able to see each other during the day so we added a wire screen window. We’re also going to experiment with a small door. Our idea is the door is big enough for the babies to go in and out but if they start getting chased by the big chickens the big chickens won’t fit through the door so the baby chickens can get to safety.