I have Muscovy and Khaki ducks and a flock of chickens. The ducks were the first to try the nipple system.
Yup! I have a nipple system for my chickens. I never expected the scovies to use it, but they did! The chickens use it one at a time, even though there's three stations. The scovies will crowd around and use all three at once!
That's funny you say that.. .this vid shows pretty much the exact same thing (except w Musc' ducklings) and here's a vid of just the system