sorry this is long......... We live in Michigan where the winters can be fierce. So my DH decided to double the coop for when its too cold and windy to go outside. It is in the basement of our barn, so he just had to add 2 walls to the existing coop. Anyways the "new" part of the coop has been there for about 2 months, it has a small door connecting it to the main coop because the "new" side is not 100% predator proof, so we close that door at night when they go to roost in the main coop. They never really went into the "new" side that often, they would be outside most of the time. Heres the weird thing. Yesterday and today there have been 30 to 50 MPH gusts of wind so I kept the run closed -(the wind would be blowing directly in.) Those crazy chickens just sit all crowded in the main coop. I tried to entice them into the new side with cracked corn etc. and they come in for a minute and go right back to being crowded in the main coop. WHY do you think they are doing it? The new side is bigger it has a nice window and also has food and water and a couple roosts, no wind and plenty of light. I can't figure it out.