I adore my 7 pullets...2 Plymouth Barred Rocks, 3 Silkies, 1 Easter Egger, 2 Buff Orppingtons. We live in Nebraska. This is our first winter of raising chickens. I have read and researched A LOT about winterizing. Last night was 0 degrees, snowy and windy. Below are pics of how our coop held up...I know ventilation is so important but we are ending up w snow in the coop, keeping the window closed. I put petrolum jelly on the girls last night but I think they got frost bite...I feel terrible. Can you help us? How can we prevent this from getting worse and fix our coop? Thank you!!!View of coop from N Ventilation on S side Our ventilation on N side Inside the coop, window closed Is this frost bite? Inside the coop Is this frost bite?