We have our 7 hens and 1 rooster in our coop with a dusting of shavings over the floor, straw in the corners for one of our hens that doesn't roost and straw in our 9 nesting boxes. Life was good. We'd clean out the poop in the am, freshen up the straw, again, life was good. We don't put food or water in the coop at night. Our girls and roo are in late and out early free ranging all day. We have 2 3 month old Pekin ducks now that are great. We figured we'd give it a try keeping them all together. They all get along fine, no aggression whatsoever. The problem is they are making a real mess of our coop. I keep the 2 pekins in an x pen within the coop on a bed of straw and a bucket of water with a big rock in it to keep it from tipping over. The floor in the coop is cement and my husband is concerned that the cement floor is getting wet. Also, the wood frame of the coop at the base is getting wet as well and he's concerned that the wood will rot. There also loos like we are now getting gnats and we never had an insect problem. Please give us some advice. What kind of flooring do people use that won't get ruined. Do I need to be putting water in at night for the ducks? I know many might say, keep the ducks separate, but i've heard that this arrangement of everyone together may work. What are the uses for DE? Should I put some kind of liner under the area the ducks are sleeping at night. I have a colossal dog crate pan that I removed from the dog crate and have put under the ducks area so they have a "liner" under their straw. Any advice would be greatly appreciated. Thank you.