Do to circumstances, the completion of the new coop was delayed so my peeps are getting crowded in the present pen. They were only to be in there a couple of weeks. I got 4 pullets at 6 weeks, they are 11weeks now. New coop nearing completion so it won't be long. I'm worried about stressing them out. First because they are getting cramped now and second for the move coming. I would like to do supervised free range but don't know when I should start it. Will they be so confused by moving that they won't return?