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   Harlequin Duck
   Histrionicus histrionicus
 Male
 Nome, Alaska
 June 2015
     
 by Mike Hearell
 ©Mike Hearell
   Harlequin Duck
   Histrionicus histrionicus
 Male
 Yellowstone National Park
 Wyoming
 14 May 2014
     
 by John Crawley
 ©John Crawley
   Harlequin Duck
   Histrionicus histrionicus
 Male
 Yellowstone National Park
 Wyoming
 14 May 2014
     
 by John Crawley
 ©John Crawley