We converted a beautiful Amish playhouse/shed into our duck house. At first it was only 6 inches off the ground and I had closed off all the sides with boards, but after a few months a creature (likely was a rat) moved in underneath. After setting traps every night and filling tunnels and holes every morning for several weeks, we jacked up the house and raised it higher on cinderclocks, to clean out underneath. In the meantime I moved my ducks into a new area of the yard. The creature left, and now I have to decide how to make it safe for the ducks to return to their stomping grounds. My husband says let them go under the house, but I remember reading somewhere that it's not good to have spaces the ducks can go underneath. When it was 6" high I knew they could get stuck under there so I had boarded it up, but now there's probably enough space for them to go under without getting stuck. I have hardware cloth and can dig a trench and skirt the whole building if I have to. If I leave it up on the cinderblocks I will also have to build a new ramp. I can't decide if I should lower it back down and add the hardware cloth, or add the hardware cloth to it the way it is, or just leave it the way it is now and let them enjoy going underneath?