Last winter was horrible for my chickens. They totally freaked out when I opened the doors for them to step into snow. Well, now I added a couple more hens to the group and want more winter space for them. This year I would like to build some sort of shelter inside my enclosed run for them to go outside. It is going to have to be rounded, I would think, so that the snow doesn't pile on top and butt up to the pop door. I want to get this planned out now instead of this fall. Can you show or tell me what you do? I'm kind of imagining an igloo type of shelter, but what about ventilation?