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   Lesser Scaup
   Aythya affinis
 Male
 Grandpa's Pond
 Hurricane, Utah
 19 Nov 2017
  
 by Jim Bruce
 ©Jim Bruce
   Lesser Scaup
   Aythya affinis
 Male
 Farmington Bay
 Davis County, Utah
 13 Feb 2013
  
 by John Crawley
 ©John Crawley
   Lesser Scaup
   Aythya affinis
 Male
 Bill Williams NWR
 Lake Havasu, AZ
 20 Jan 2011
  
 by Ted Fitzgerald
 ©Ted V. Fitzgerald