I am considering raising a few chickens for eggs when retire which should be sometime in the next 3-6 years. I'm starting my research in coop design. I have a 12 x 20' shed next to my barn and I plan to use the back third of the shed for the coop and the area between the barn and the shed for the outside area. Too many cats (barn and feral) to give the chickens free range. Once I have the coop designed and built then I'll get some chickens. Any suggestions on keeping chickens in a cold climate would be appreciated.