I don't have my own ducks, but I got a report from someone about a wild mother duck with 7 ducklings. She lived near a boat dock and, one day, led them all out onto the dock and jumped off. Then, she gave a big quack and waited until each duckling had jumped off one by one. When one would jump off, she would move aside until the second one would jump off, etc.
Just recently, I saw her on a sidewalk with her now grown ducklings. She flew off a nearby ledge into the water, quacked, and one by one the ducklings flew down to her, except for two. Those two walked around the wall to a small beach where they waded in. Mom went up to collect them and bring them back to the others.