ok my 12 almost 2 week old chicks are outgrowing brooder 1 which is a plastic tub, and this weekend I plan to move them to the barn. The barn has a concrete foundation and box stalls (empty, for now). It is only a few years old and has thick solid walls in great shape. There is no ceiling on the stalls. It is also very dark (not so good) and stays cool all day (good). Here are the questions. My husband built a frame for more of a pen to keep them in the stall. It is about waist high, and would be surrounded w/hardware cloth including the top. Can we use this? It would be sort of awkward to get in and out of. I was thinking a little more conventionally like a large feeder tub or cardboard box, nothing over the top, and shutting the stall door. He is worried they will fly all over. Will they? They are just learning to fly to the lip of the clear plastic tub. Also is a predator likely to get in somehow? I really think not but the chicks are so vulnerable and I know I'll worry. Last of all, should I leave a light on during the day since it is very dark with the doors shut? They will still have their heat lamp. Thanks... I know these are newbie questions (well, I am!).