What Sound DOES a Duck Make?
by Ken Greatorex
You’d probably answer “QUACK!“
And indeed, you’d be right some of the time. Some ducks quack. Most don’t. Because I’m a Skeptic in insufferably pedantic mode, I just thought I’d point that out before proceeding.
If you’d like to hear a range of sounds made by different duck species, (including quacks), go here: https://www.soundboard.com/sb/Duck_Sounds_audio
Skeptics use the word “quack” to define a particular kind of person:
“a fraudulent or ignorant pretender to medical skill” or “a person who pretends, professionally or publicly, to have skill, knowledge, qualification or credentials they do not possess; a charlatan or snake oil salesman” – Dictionary.com