Clumsy, don't accidentally teach the dog that it is okay to chew on ducklings! The one duckling on the tail isn't impressed by that already.

RRG Duck: "Okay, RRG Ducklings, we keep away from this Dog and the eventual drama with Clumsy when the owner of the Duck arrives to get Leo back."

Dogs use their sense of smell way more than humans do, probably wouldn’t confuse the smell of a rubber duck and a real duckling very easily, but I don’t think the ducklings know that