(Found mainly along the coasts of Canada and the eastern US)  

  

This species in Europe has a whitish tip on the bill

   Common Eider
   Somateria mollissima
 Female
 Firth of Forth
 South Queensferry, Scotland
 19 July 2012
  
 by Kendall Brown
 ©Kendall W. Brown

This species in Europe has a whitish tip on the bill

   Common Eider
   Somateria mollissima
 Females
 Firth of Forth
 South Queensferry, Scotland
 19 July 2012
  
 by Kendall Brown
 ©Kendall W. Brown
   Common Eider
   Somateria mollissima
 Male
 Kodiak National Wildlife Refuge
 Alaska
 18 Apr 2008
  
 by David Menke/USFWS
 ©Public Domain
   Common Eider
   Somateria mollissima
 Female
 Alaska
 18 Apr 2008
  
 by Tim Bowman /USFWS
 ©Public Domain
   Common Eider
   Somateria mollissima
 Female
 Nantucket National Wildlife Refuge
 Massachusetts
 27 July 2011
  
 by Amanda Boyd/USFWS
 ©Public Domain