The only birds that require room is a ringneck.There are guilelines to go by but nothing enforced.Well that's in N.H. anyways.Howlands book says that 100 sq ft per pair.Yes their coop has to be fully enclosed.
In N.H.,Tony.
I don't think I asked the right question. I know they have to have an enclosed pen. But for shelter, what do they need? I noticed on many of the pics it was more like a windbreak, rather than an enclosed "coop."