Thank everyone in advance, this forum is wonderful! We are expecting 6 chicks tomorrow, have the brooder pen (airline dog kennel) ready and waiting; ready to start on the conversion of our shed into the coop (thank you DH!). I want to allow the hens access to their run during the day (a 10' x 10' dog covered dog run) but worry about having a hen-sized hole open to the cold all day long (we're in CO, in the mtns at about 9000'). Can I cover the hole with heavy plastic fringe - like they put on walk-in freezer entries, or would that scare the hens? Am I worried about nothing? Would love to hear how other have dealt with this.