There is a very large list of collective nouns for ducks, but the one that best describes what we have here on Haldan Farm is a waddling.
About a year and a half ago we bought several duckling from the local farm store. After spending some time in a confined space under lights getting adjusted we let them have their freedom around the farm. They did their job (eating slugs) and proved to be so funny and cute that we were shocked that we hadn't thought to get ducks years before.
Haldan Farm is, though, in a place which features many predator birds (owls, bald eagles, hawks and more) and we had some losses and got down to one clever female. We bought a few more ducklings from the farm store and the adult female literally took them under her wing and we had a new waddling. They always travel together and are such a joy when returning home from a late-night meeting. No matter the hour, they wake right up and come and greet at the driveway. No one can sneak onto our property at night! They are immediately assaulted with a cacophony of "quack, quack!"
Recently we acquired five more ducklings. These, like all of the others, were kept in a confined space for the first two weeks so that they could adjust to our place, but the adult ducks had access to view them and visited regularly.
Today is the ducklings first day out and about and those four ducks are taking them for a tour - really! They are waddling around and showing the littles the place, pausing when necessary so that everyone can catch up. I never knew ducks could be so wonderful, and now I can't imagine a farm without them!