| AdultsImmatureAction | Action 2 |  
  

  
   Western Gull
   Larus occidentalis
 Farmington Bay
 Davis County, Utah
 13 Feb 2013
  
 by John Crawley
 ŠJohn Crawley
   Western Gull
   Larus occidentalis
 Farmington Bay
 Davis County, Utah
 13 Feb 2013
  
 by John Crawley
 ŠJohn Crawley
   Western Gull
   Larus occidentalis
 Adult
 Near Oxnard, California
 2 Mar 2012
  
 by Ted Fitzgerald
 ŠTed Fitzgerald
   Western Gull
   Larus occidentalis
 Breeding Adult 
 Bear River MBR
 Box Elder County, Utah
 8 Jul 2008
  
 by Jim Pawlicki
 ŠJim Pawlicki