I have had chickens for a while, 11 of them, and they are nice and clean, I have them in a mesh bottom cage, so their poop falls through, and I move the cage around now and again, their nesting boxes are full of nice clean straw, which I hardly ever have to change, their waterer stays fresh and clean for a few days. my son begged me for some ducklings, they are so cute!, but I have never seen anything so DIRTY!!, they are about 2 weeks old now, I have them in a pen about 10 feet by 6 with a nice kiddie pool in it, a feeder and grass, I can clean out that kiddie pool, and they will dirty in within an HOUR, they poo in it, put their food and mud in it, swish the water out and make their pen mud, put mud and food in their water, put water and mud in their food, their little bellies are constantly full of mud. also they don't seem as "smart" as the chickens, maybe they are just young and need to grow, but they are so darn stupid!!, they will wriggle like the dickens when you pick them up, and try and drop themselves on the floor, they will run into the sides of the cage when I try and pick them up, and WOW I never knew duck feet could be so SHARP!!, I thought they were nice soft web, but those ducklings scratch the hell out of my fingers. as you can tell, I am not too fond of them right now, they are a lot of work, mean, dirty and stupid!! hopefully when they are on the big lake they will be better and more useful, they do seem to be eating mosquitoes, so they may redeem themselves! sorry duck lovers, just venting a little!