I was chatting with a local farmer yesterday - I have 5 chickens, she has a couple hundred - and I asked her what she does with her chickens in the winter. She puts them in a large hoop house, covered with a single layer of plastic film. she opens the sides during the day because it gets warm, and lowers them at night. I assume there's also plenty of ventilation, of course. Has anyone tried this? Pros and cons? Tips to make it work? My coops already is hoop-shaped - about 5 feet high, 8x5 floor plan. It sure would be cheap and easy!