The ducks aren't that bad. At least not usually. My Muscovy and Khakis hatch just fine. Calls are another kettle of fish entirely and you can get Meemaw to tell you about 72-hour assists because we've made their faces so stupid they can't hatch on their own. The geese have no problems hatching naturally. But artificially you need to mimic the hen getting off the nest to eat and drink and then returning to the nest after a quick dip with wet feathers. It helps the eggs lose moisture.Yikes! No water critters for me.