I've been wanting chickens for years. My dad had some, but I don't remember much about their care. Proper flock size...for some eggs and cuteness. Not planning on a rooster. We'll see if I can bring myself to raise eating birds. How far will they wander? Must I round them up at night, or do they generally head in, so they can be secured? I have about 3/4 acre open, with wooded areas, making 1.3 acres. What is required for wintering re: heating? Will I need to shovel snow for room to run? Or how big a coop will suffice for 5-6 hens during winter?