I am in the process of desigining a new coop. I know that there needs to be adequate ventilation, but not drafts. We currently have a chicken coop that seems to be ok in that department. I just thought I would get some input before designing the new one. What would be the best way to provide ventilation, without creating drafts? My coop is probably going to be apx 10ft long, 4ft deep and 5ft high. I have two standard hens, two bantam hens and a rooster that is in between sizes. I'm plan on adding 3 to 4 more hens come late spring-hence us needing a new coop.(I'm ordering chicks in a few weeks!!!!!!!!)Because the coop will be in a fully enclosed and secure run (top, bottom, and sides), I won't need to close the coop itself up at night.