The only part of this article that I find helpful is to make your decisions based upon your flock's circumstances. Here in So. Cal., our winters can be chilly, but no snow. The birds become acclimated to warmer weather so when we have rain and low temeratures, it is an uncomfortable novelty to them! I insulate the top of the hutch with foam panels and use hardboard or plywood to protect it against pecking. I also use a small heater to keep the temperature up at night. During the day, the girls free-range. While the coop is designed for 3 - 6 birds (from Tractor Supply), the hens huddle at night anyhow, so actually a dozen would likely be comfortable there. (I'm enlarging the coop in the event they do desire more space; its up to them.) I keep the hutch dark at night so as not to interfere with their normal light-based hormonal system. Our flock is for egg-producing, only. They do NOT join us at the dinner table so there may be a difference in philosophy between us and the writer of the article.