How soon can I let my six-week old chickens out of the coop? Will they wander away or staty close? Is there a time frame for adapting them to coop? and when should they be allowed out - no run yet, but am working on it ? And also how do we keep coop cool in summer? We have two front windows and one rear with the pop door, but it still seems to be awfully warm. Can they be to warm?