Great Black-backed Gull (Larus marinus)
(last update: October 12, 2011)
Great Black-backed Gull (Larus marinus) J1MV 2cy: October 15 2008, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.
Bird ringed as pullus at Karmoy, Norway, on June 30 2007.
30.06 2007, Observers Colour mark put on Ryvingen, Karmøy, Rogaland, Norway 59°16'45"N 005°09'05"E
Complete moult almost finished, with P10 just an inch short. Note the replaced fresh feathers, moulted again recently in the partial autumn moult, which normally includes upper tertials, inner gc and many of the mc. Tertial #2 still growing here.