What describes a duck with a d?

On the lighter side: Look! There goes a guy carrying a giant "D", and he's walking like a duck!

Or: Diving ducks, driving ducks, delicious ducks, delirious ducks, desirous ducks, dallying ducks, drowsy ducks, Decibel Ducks (if they are loud?), derby ducks (if they seem to be racing somewhere?), dewy ducks, dry ducks, and I'm sure there are plenty more...