I have two coops. A 3 open-sided summer coop and a brick barn with one stall converted to a winter coop. In summer the barn is an oven so I move the chickens to the wire coop. It is 8 feet from the barn. Now that the nights are in the low 50's the chickens have moved into the barn. All except for 6 5-month old pullets. Every night I move them into the barn but the next night they go back to the wire coop. I have been moving then for a week now. Should I continue to move them or just let them stay in the summer coop?