Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)
Coordinators:
Jean-Michel Sauvage (France)
Morten Helberg (Norway)
Nils Helge Lorentzen (Norway)
Mars Muusse (Netherlands)

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Great Black-backed Gull (L. marinus) 8J9 3rd pre-basic moult (3CY), September 04 2015, High Head, North Truro, Barnstable County, Massachusetts. Picture: Steve Arena.

Please visit Steve's Flick photostream excellent website for many more images! Banded as pullus on July 12 2013, at Appledore Island, York County, Maine USA. For more info about this project, see The Gulls Of Appledore blog.

Last stage of complete moult: P10 old 2nd gen primary, P1-P7 new 3rd gen primaries. New 3rd gen tail.