(Found Mainly along East coast of North America)   

| Adults | Immature | flying |   
 

 

    

  

 Great Black-backed Gull
 Larus marinus

 Firth of Forth, Scotland
 19 Jul 2012

 by Kendall Brown
 ęKendall W. Brown

   Great Black-backed Gull
   Larus marinus
 Firth of Forth, Scotland
 19 Jul 2012
  
 by Kendall Brown
 ęKendall W. Brown