sub-adult: October
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Great
Black-backed Gull (Larus marinus) 4cy JTV5: October 10 2004, Westkapelle, the Netherlands (51.33N - 03.25E).
Primary p7 fully grown and no old
primaries left. Note the variegated pattern in the lower tertial. Ringed
in summer 2001. Picture Pim Wolf. |
 |
Great
Black-backed Gull (Larus marinus) 4cy JE4H October 05 2006, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage. |
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Great
Black-backed Gull (Larus marinus) sub-adult: October 01 2001,
Le Portel - Boulogne sur Mer, France (50.42 N - 01.34
E).
Primary p6 fully grown and p10 still
not shed. |
 |
Great
Black-backed Gull (Larus marinus) sub-adult: October 01 2001,
Le Portel - Boulogne sur Mer, France (50.42 N - 01.34
E).
Primary p7 fully grown and no old
primaries left. Note the variegated pattern in the lower tertial. |
 |
Great
Black-backed Gull (Larus marinus) sub-adult: October 01 2001,
Le Portel - Boulogne sur Mer, France (50.42 N - 01.34
E).
Primary p8 fully grown and no old
primaries left. |
 |
Great
Black-backed Gull (Larus marinus) sub-adult: October 01 2001,
Le Portel - Boulogne sur Mer, France (50.42 N - 01.34
E).
Primary p8 fully grown. |
 |
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