It's the second day I have let my 11 hens and 1 turkey out of the coop and into the run. The weather has been nice this weekend in Central Oregon. Day 1 they were roaming while I cut in the pop door and made the ramp. This morning I simply opened the door and they are quickly becoming accustomed. The question(s): Do I need to urge them back inside and lock them up so they don't get too cold? They are just in feather. Roughly 4 weeks old. Or, do they get the hint, and will get back inside where it is warm? The run is predator safe. EDIT: It's 40 deg. out right now and they are out playing still.