Hello! I live on the northwest coast, with relatively tame, wet, weather, My sister and me are trying to build our first coop. So far, we're thinking a 6' x 4' structure, with a wood floor raised up on cinderblocks to keep it out of the mud. We'd put solid plywood walls on end, and partway down both sides, so that they can have a windbreak and corners to hide from prying raccoon hands. The rest would be encased in wire mesh, and they'd be let out everyday to wander in our backyard. It would have a slanted, corrugated tin roof, and a roost inside, of course. This would be for three, maybe four birds. I am not an expert - can anyone else see any obvious flaws to the design? Any feedback? Thanks.