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   Harlequin Duck
   Histrionicus histrionicus
 Male
 Yellowstone National Park
 Wyoming
 14 May 2014
     
 by John Crawley
 ŠJohn Crawley
   Harlequin Duck
   Histrionicus histrionicus
 Female
 Antelope Island Causeway
 Davis County, Utah
 30 Sep 2011
     
 by Paul Higgins
 ŠPaul Higgins

Molting 1st year male

   Harlequin Duck
   Histrionicus histrionicus
 Antelope Island Causeway
 Davis County, Utah
 28 Sep 2011
     
 by Paul Higgins
 ŠPaul Higgins

Molting 1st year male

   Harlequin Duck
   Histrionicus histrionicus
 Antelope Island Causeway
 Davis County, Utah
 25 Sep 2011
     
 by Paul Higgins
 ŠPaul Higgins

Molting 1st year male

   Harlequin Duck
   Histrionicus histrionicus
 Antelope Island Causeway
 Davis County, Utah
 28 Sep 2011
     
 by Paul Higgins
 ŠPaul Higgins