My 6 hens are only on sand - run, coop and nest boxes. Just sift and throw in compost…really easy. Ducks really do seem like they would be much more work.Lol! No, ducks are so messy the last thing I would want is a pond in with them. I use a kiddie pool for my full grown ducks and dump is every 2-3 days. As long as they can dunk their head in water they should be fine. Not quite the same as chickens but they are personable so I take the trade off.
Just wondering, do ducks demonstrate unique personalities? Chickens do - and that was the greatest surprise when I got mine.