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   Lesser Scaup
   Aythya affinis 		 Male
 Provo River
 Provo, Utah
 17 Feb 2023
   		 by Keith Lane
 ŠKeith Lane
   Lesser Scaup
   Aythya affinis 		 Male
 Provo River
 Provo, Utah
 17 Feb 2023
   		 by Keith Lane
 ŠKeith Lane
   Lesser Scaup
   Aythya affinis 		 Male
 Bolsa Chica E. Reserve
 Huntington Beach, California
 7 Nov 2015
   		 by Kendall Brown
 ŠKendall W. Brown
   Lesser Scaup
   Aythya affinis 		 Male
 Farmington Bay
 Davis County, Utah
 13 Feb 2013
   		 by John Crawley
 ŠJohn Crawley
   Lesser Scaup
   Aythya affinis 		 Male
 Farmington Bay
 Davis County, Utah
 13 Feb 2013
   		 by John Crawley
 ŠJohn Crawley
   Lesser Scaup
   Aythya affinis 		 Male
 Tonaquint Nature Center
 St. George, Utah
 21 Mar 2010
   		 by Oliver Hansen
 ŠOliver Hansen
   Lesser Scaup
   Aythya affinis 		 Male
 Farmington Bay
 Davis County, Utah
 24 Dec 2008
   		 by Kent Keller
 ŠKent R. Keller
  
  See "Comparison of Greater and Lesser Scaup" with photos by Brian Currie.