Wondering if it would work/be a good idea to stack hay bales on the outside of the coop to provide a bit more insulation since our coop is very old and way too big for the number of chickens. Someone recommended building a box or dog house type of thing to put inside so the chickens can roost in there at night and use their body heat to stay warm. While it sounded like a good idea, I no longer think it is. It would have to have a bottom so the warm air doesnt escape and the bottom is going to be completely covered in poop and it would be a nightmare to try to clean it every day. I also don't think chickens are going to be going into a box to sleep with a floor. We get some pretty frigid weather at times and are trying to make due with what we have.