So we have a small Formex coop and it's only October and we already have super high winds (60mph) and wind chills are negative already. So i do no want to use a heat lamp in the coop but was thinking i could block three sides with some squares of hay. My question, are there certain types of hay that i want or don't want? Should i be worried about the girls and the hay? We have sand and rock in the run and sand in the small coop. We do have hardy birds (Easter eggers, Black/red star and B.O.). I was thinking to kind of build a house for them too so they can be outside and draft free. I have a desk that I turned into a huddle box but i want to give them as many options as possible. I can get it pretty cheap here in Colorado but just want to make sure i know what i am looking for..... Thanks ya'll!!!