I have read through practically the entire thread concerning "Winterizing your Coop" and I am still a little confused. I understand the importance of venting your coop so humidity does not build up but were is the line between venting and preventing drafts. Some of the coops I have seen here have big vents that I would think would create drafts. I am just not sure what to do. Where should they be placed? How big should they be? How does venting not cause drafts? My coop is 4x4x4. (we only have 4 standard sized chickens and 1 bantam) I have 1 window that is 10x18 (yes its small and we are replacing the whole coop making it taller with a window that is 36x36) My husband drilled two 2.5 inch holes opposite the windows for ventilation over the summer. My outdoor run is 10 foot by 4 foot which is covered and they also have the 4x4 area under the coop. We have enclosed the run with plastic to prevent drafts and snow in the run. I am installing a thermometer inside the coop which will give me the temp and humidity so I can monitor that... Any help would be greatly appreciated.