Some ducks don't sound like ducks at all. Some, like the Harlequin, squeak. Harlequins are unique in other ways, too. Quick and agile in rushing white water, they dive to the bottom of mountain streams for food, and use fast-flowing rivers for breeding. If you're lucky enough to spot a Harlequin Duck, you may guess how it got its name. Dressed in vivid multi-colored patches, Harlequin is the jester of traditional Italian comedy.More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.