Larus marinus Great Black-backed Gull (shown with Sterna maxima) ID: 0000 0000 0805 1108 [detail] © 2005 Will Chatfield-Taylor

Larus marinus Great Black-backed Gull ID: 0000 0000 0708 0341 [detail] © 2008 Jason Gibson

Larus marinus Great Black-backed Gull ID: 0000 0000 0708 0342 [detail] © 2008 Jason Gibson

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