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(Found along the central Atlantic coast and the south tip of Lake Michigan)
 

   Mute Swan
   Cygnus olor
 Tonaquint Park
 St. George, Utah
 3 Apr 2013
  
 by Gene Rogers
 İGene Rogers

Immature in back with two adults in front

   Mute Swan
   Cygnus olor
 Deer Creek Reservoir
 Wasatch County, Utah
 26 Jan 2013
  
 by Nate Brown
 İNathaniel Brown

Adult on left, immature on right and Bufflehead in background

   Mute Swan
   Cygnus olor
 Deer Creek Reservoir
 Wasatch County, Utah
 26 Jan 2013
  
 by Nate Brown
 İNathaniel Brown

Mute Swans in Utah are probably not wild.  These were purchased by Salem City

   Mute Swan
   Cygnus olor
 Late 1st winter
 Salem Pond
 Salem, Utah
 17 Jan 2013
  
 by Ted Fitzgerald
 İTed Gitzgerald