Hello, The snow is beginning to melt and my backyard chicken yard is turning into a mud hole. I'm thinking about covering the yard in a layer of pea gravel to promote drainage. Does anyone have any cost-effective suggestions regarding how to filter the run-off and cut down odor at the same time, making the yard a better place for the chickens throughout the spring melt or during rain build-up? To give an idea, the yard is bordered by a slab of concrete so I am unable to divert the run-off, especially if it is smelly, onto the concrete as it will simply run into an adjoining alley. This is the first winter thawing experience and I'm taking steps as I go, learning and learning. Any suggestions will be helpful. Also, I have a doggie dooley (http://www.doggiedooley.com/) that I can install. I could sort of squeegee the top layer of mud into some version of a doggie dooley and add the biodegradable product to the mix; but I don't know how economical this would be when disposing of the entire top layer of mud in a chicken yard--or even if it would be feasible. It would not be so bad if the waste didn't collect in muddy pools.