Meaning of harlequin duck

har'lequin duck"

Pronunciation: [key]
  1. a small diving duck, Histrionicus histrionicus, of North America and Iceland, the male of which has bluish-gray plumage marked with black, white, and chestnut.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.