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   Trumpeter Swan
   Cygnus buccinator
 Madison River
 Yellowstone National Park
 Wyoming
 25 Aug 2018
    
 by Cliff Miles
 ©Cliff Miles
   Trumpeter Swan
   Cygnus buccinator
 Madison River
 Yellowstone National Park
 Wyoming
 25 Aug 2018
    
 by Cliff Miles
 ©Cliff Miles
   Trumpeter Swan
   Cygnus buccinator
 Kays Creek Pond
 Layton, Utah
 4 Feb 2006
  
 by Joel Beyer
 ©Joel Beyer
   Trumpeter Swan
   Cygnus buccinator
 Madison River
 Yellowstone NP, Wyoming
 September 1998
  
 by Kristen Comella
 ©Kristen Comella