Interesting facts:
• Despite widespread misconceptions, only the females of most dabbling ducks "quack". For example, the scaup – which are diving ducks – make a noise like "scaup" (hence their name), and even among the dabbling ducks, the males never quack. In general, ducks make a wide range of calls, ranging from whistles cooing, yodels and grunts. Calls may be loud displaying calls or quieter contact calls.
• In 2002, psychologist Richard Wiseman and colleagues at the University of Hertfordshire, UK, finished a year-long LaughLab experiment, concluding that of all animals, ducks attract the most humor and silliness; he said "If you're going to tell a joke involving an animal, make it a duck." The word "duck" may have become an inherently funny word in many languages possibly because ducks are seen as silly in their looks or behavior. Of the many ducks in fiction, many are cartoon characters like Donald Duck, who appeared in a Walt Disney film for the first time on 9 June 1934, and Daffy Duck, who appeared in Warner Brothers films.