I have 4 chicks that are 5 weeks old. They were raised in a XL Dog Kennel in the house until last night. For the last week we would carry them out and let the chicks play all day in the closed up run and return to the house at night. Last night we let them sleep with the older chickens in the roost. Got up bright and early, let the big girls out to play and left the babies in the run again, locked up. Before chicks, I would keep the run door open all hours and let the big girls go in and out as they pleased. How long should the baby chicks be contained in the locked up pin before I can open the door and let them out? I have a large wooded yard, and while predators are a concern I am more focused on whether they will come back to the run/coop on their own if I let them out. Any advise? Food and water are in the run.