Hi there, I have 9 older hens one is 6 years old and the rest 3-5 years old. They are 5 Buffy O's; 1 Easter Egger; 1 Barred Rock; the other two are not coming to mind. A new flock of seven raised by two Bantam Cochin are now crowded in a small mini coup. They are loose in the mid to late AM and are open to free range but I think the older girls are scaring them back into their run. Also the Mama's are very attentive even though the "little gals, 1 guy" are much bigger than they. The question is when should I force the issue with the young'uns going into the big coop? They are 16 weeks. Both flocks are on the same feed. Most of the big girls were the last ones I had and they just did it themselves..... The Mama's will stay in the small coop and run when the young'uns are transfered. Thanks for your help!