Living in Cornwall, we have a couple of toadstalls once used to raise a grain store to keep the critters out. The problem is the little birds feed off it but so do the larger birds including gulls. So we needed something to cover it. The problem was it was larger than the top of the toadstall. The problem was reasolved by passing two steel rods through the cage lifting it to fit perfectly with just one circle of openings encasing the stone circle stopping any from entering other than those for which it was intended.
Well constructed.
