A combination of the 3. I have a big coop and it's good for the whole flock, but I love Purebred Chickens. And I love lots of different breeds and colors. So I'd love to be able to separate my chickens by color/breed, etc. I have some lumber and maybe i could get my dad to help me this winter fix up some little pens. Something in the way of a tractor. except just a cage. That offers shelter as well. Nothing too big. Something that could easily be lifted and moved but could hold 4-10 bantams. Anyone got anything like this?