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Light adult on left -- Dark adult on right

   Pomarine Jaeger
   Stercorrarius pomarinus
 Nome, Alaska
 June 2015
  
 by Mike Hearell
 İMike Hearell

   

  

 Pomarine Jaeger
 Stercorrarius pomarinus

 Dark Adult
 San Luis Pass
 Galveston Island, TX
 24 Oct 2004

 by Dave Allen
 İDave Allen