Starting on my breeding flocks this year and looking for ideas on building breeding pens in a single coop. How big should the pens be for a breeding group (probably around a half-dozen birds total, give or take)? What do I need in the pens (I assume a couple of laying boxes and roosts, feeders etc)? I plan on having outdoor runs coming off each indoor breeding pen, but in the winter the chickens will be kept indoors as I live in central Canada and the winters can be quite harsh. Planning on keeping Orpingtons and Chanteclers.