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   Lesser Scaup
   Aythya affinis 		 Bolsa Chica Ecological Rsrv. 
 Huntington Beach, California
 7 November 2015
   		 by Kendall Brown
 ©Kendall W. Brown

Female Greater Scaup on left, Female Lesser Scaup on right)
   Lesser Scaup
   Aythya affinis 		 Salem Pond
 Utah County, Utah
 18 Jan 2019
     		 by Cliff Miles
 ©Cliff Miles
   

 Lesser Scaup
 Aythya affinis

 Male & Female
 Bolsa Chica, California
 25 Nov 2000

 by Margaret T. Sanchez
 ©Margaret T. Sanchez

Female on the left, two males on the right
   Lesser Scaup
   Aythya affinis 		 Powell Lake
 Lehi, Utah
 3 Apr 2014
   		 by Cliff Miles
 ©Cliff Miles