I have a very large issue with mud. We built a 10 x 10 cage with a house on it. Just in time for a spring 'monsoon', flooding the yard area and destroying all vegetation. I realized that the drainage is very poor. And there are many predator in the area. We put 2X6's around the coop. Right now I am faced with a very muddy pen. I am a new duck owner, and I am not quite sure what to do. I cannot move the coop. But I can dig trenches. Love my ducks and don't want them to get sick.