Our chicks are almost 5 weeks old. My DH plans on finishing the coop this weekend and the temps will be in the 70s and 80s for the next several weeks. We still have the heat lamp in the brooder, but they stay on the opposite side. When do we move them and what would you say is the best way to go about moving them? They will have a 4x8 foot area with the house inside. Our brooder is 2 large boxes. I was thinking about opening up one side and putting it inside the run for a few days so they can venture out as they please.