We've put most of our roosters [8 of them] into a fenced in area in our woods behind the hen house. With winter fast approaching, we need a quick inexpensive idea to make some kind of shelter for them once the trees lose all their leaves and the weather turns windy, rainy, stormy, snowy and bitter cold. We thought we might use the back side of the hen shed as a brace, if possible. I was thinking of trying to build a shelter with bales of straw stacked about three high on the sides and put straw on the ground and a few perches made of thick branches wedged in between the bales at one end of it. I thought using straw would help keep them warm too. It wouldn't be closed shut, however, but have an opening for a door and so we can get in and out as needed. And use a large board for the top of it since snow and water would weight down a tarp, even a heavy one. What do you all think? Is that a good idea or can you offer other suggestions? Thanks.