I have had my duckling out for over 8 weeks. The grassy area that I had their food sitting on is now a bare dirt/muddy area with spilled bits food and a serious stink going on. I was violently gagging yesterday trying to clean up spilled, rotting food. Would putting down mulch or straw or sand or something help? What do you do for feeding your ducks? (I take food out of yard overnight to prevent drawing in other animals and give fresh food every morning).