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   Lesser Scaup
   Aythya affinis
 Male
 Salt Lake County, Utah
 8 Apr 2014
  
 by John Crawley
 ©John Crawley
   Lesser Scaup
   Aythya affinis
 Male
 Farmington Bay
 Davis County, Utah
 13 Feb 2013
  
 by John Crawley
 ©John Crawley
   Lesser Scaup
   Aythya affinis
 Female
 Sandy Fishing Pond
 Sandy, Utah
 4 Feb 2012
  
 by Ronald Walker
 ©Ronald Walker
   Lesser Scaup
   Aythya affinis
 Male
 Bill Williams NWR
 Lake Havasu, AZ
 20 Jan 2011
  
 by Ted Fitzgerald
 ©Ted V. Fitzgerald