Hello, I have 6 hens. They were hatched in March. I have a nice pen for them. It's roomy and next to a shed, so it's got somewhat of a windbreak. There are trees close and part of it is roofed. There's also a structure that a friend gave me. She'd had chickens and was moving out of the area. It's like a raised enclosed-by-chicken-wire space. So they have plenty of space to get out of the rain or weather. But, they have no "indoor" space. This has been fine. However, it's getting colder. My friend, who lived just down the street, had a very similar setup as me and her chickens did just fine. However, I think her enclosure was a little bit more... enclosed. I have chain link around a lot of it. She had a house and wooden fence around hers. It snows occasionally here but not every season. So... as winter's approaching, I'm trying to figure out how best to keep them warm. I'm wondering if I should get a large dog house and put hay in it? Or do they need more than that? Or should I try to put some sort of windbreak around the fence? Or should I wrap the coop I have in plastic so it keeps it warmer? Any ideas?