I will be moving 4 and 5 week old chicks into the coop in a week. The bedding in the coop currently is big pine chips and sweet pdz. I worried about the chicks eating the pdz. Should I be worried? They will have a integration/separation area for them to escape to if need be. As of right now its not supposed to drop before 40 degrees for a few more weeks. Should I add a heat plate or mama cave if it does drop below 40 or don't worry about it as long as they are fully feathered? I still have a week or so to make sure its perfect for them.