We have 63, 4 week old chicks. We have many questions, but here is our “housing” information for them: They are all in a 8’ X 4’ stall in our barn, until they grow larger. It has a concrete floor, but we have a nice layer of straw down. We have 2 heat lamps for them, as well as their feeder and waterer. We live in Western New York. Here are our questions: We don’t know the gender of our chicks. How do we determine that? Do the chicks need scratch? Can we give them fresh greens or dandelions yet? Can we let them outside, once they are grown, during the Winter months? Our barn is not insulated. Temperatures in the Winter here drop to as low as 0 degrees, or lower. Should we put in insulation for the Winter?