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   Common Merganser
   Mergus merganser
 Yellowstone National Park
 Teton County, Wyoming
 2 Jul 2009
     
 by Cliff Miles
 ©Cliff Miles
   Common Merganser
   Mergus merganser
 Female with young
 Causey Reservoir
 Weber County, Utah
 Spring 2008
     
 by Scott Baxter
 ©Scott Baxter