Either of these systems are stellar for keeping water clean, not having to change it out 3 or 4 times a day, and for keeping chicks hydrated. The first two shots are my day old chicks using the vertical nipple system. Nipples are available at most TSC stores. The bottom shot is a horizontal nipple placed in an instant powdered iced tea container. The vertical system does tend to drip when they drink or if they get to tearing around in there and bump the nipples, but it's localized and easily cleaned up with a spatula...pick up the little bit of damp bedding and pull some of the dry over it. I'll never go back to any open waterer.
Do you think it would work for water fowl also?