Got my chickens in a temporary 16x24 pen today so I can now start planning their permanent place before winter. I don't know if I should make a chicken tractor or a solid wooden coop and pen. I would love to let them free range and maybe that will work out later but I have a German Shepherd who has never seen chickens and he is very interested in tbem so I won't let them oit until I know he is ok with them. I have 7 acres and they would have a lot of space to peck around. I've seen a PVC tractor that looks easy to make, its not the hoop coop. It's a big square one with a coop attached. I like the movability part but in the winter don't think it'd be getting mpved much. I live in the high desert in Oregon. Winters will get pretty cold and they will need a heat lamp and heated water. Any suggestions? I don't know where to start!