Great
Black-backed Gull (Larus marinus) JZ58
3cy: June 24 2003, IJmuiden, the Netherlands (52.27 N - 04.33 E). Two
images.
Great
Black-backed Gull (Larus marinus) 3cy: June 14 2002, Le
Portel - Boulogne sur Mer, France (50.42 N - 01.34
E). Primary moult stage: p6 missing. All rectrices old second generation.
Great
Black-backed Gull (Larus marinus) 3cy: June 14 2002, Le
Portel - Boulogne sur Mer, France (50.42 N - 01.34
E). Primary p10 shows a small mirror on a second generation primary.