Its important to remember that we have members from all over the world here, just because one person needs to keep their ducks completly enclosed in welded wire does not mean everyone does. Certainly its important to keep your flock safe but let's face it, life as a duck is pretty dangerous, and no matter what you do as their owner you can't ensure their compleate safety. Since this is the case you can only provide a measure of safety and depending on your location there are other ways to do that besides an enclosed run. Free ranging your ducks does not make you a bad person and letting your ducks out into a covered run is not free ranging.