More coops. That's what I do. I now have a total of 8 coop or coop-ish buildings for my chickens. Plus a rabbit hutch used for quarantine or "hospital" segregation. One coop housing four pullets is a transformed, plastic Little Tikes playhouse. Another was supposed to be a Duck House, just a 3 ft by 3ft square box with a lid to open and door to close in the "ducks" - but the ducks didn't like it at all. So 3 bantams and one full-sized cochin sleep in it at night. I built two coops, commissioned another by a builder, and bought some coop kits. So I have a kind of Chicken Compound, or permanent Camp for Chickens and everybody just has their particular "room mates."