We currently have 10 bantams hens who are free range by day and share a large coop together at night. We would like to raise more hens from fertilised eggs next year using our broodiest hens. We are happy to buy another coop but think that once the chicks are old enough to join the others, they will follow mum to bed in the old coop and then we will have overcrowding! Is this what is likely to happen? Is there a way to encourage existing hens/new hens to use a new home and split the brood? Or are we going to have to lift them out and move them every day?! Views please. Thanks.