We are putting the finishing touches on our coop (The Chick-chal-A) and preparing it to house our five girls. We started with a wooden shipping crate up on legs, and it is on its side lengthwise, with two outward swinging doors in front in a hutch-like configuration. Since we do get some snow and freezing temps in the winter here in OR, I wanted to leave the box part of the coop as cozy as possible without wire mesh on the doors and such. We have an opening at the bottom with a ramp down, and three circular vents on one side. Otherwise everything is fairly buttoned up. What are your thoughts regarding ventilation? Do we need more? Are lots of vents necessary for air quality (keeping the stink down inside)? Thanks for the input! edited to add: just discovered the ventilation page...lots of my questions got answered already!