I am new to turkeys and want to provide them with their own run and shelter for the winter. When everyone is ready to be outside I will hopefully have 7 blue slate turkeys. How big should the run be and how big should the shelter be? I've also read somewhere that turkeys do not require as much draft/cold protection as chickens. Is this true or should we build something as draft tight as I have for my chickens? I was originally thinking something along the line of a dog house style shelter in a 12' x 6' pen. Would this work?