Herring Gull 761N 1cy-2cy (argenteus), November 06 2008 & April 06 2009, Boulogne-sur-Mer, France. Picture: J-M Sauvage.
Herring
Gull 761N 1cy (argenteus), November 06 2008, Boulogne-sur-Mer, France. Picture: J-M Sauvage.
Bird ringed at Calais, France on 05 July 2008. Many scapulars replaced: us = 75-99% 2g; ls = 25-50% 2g; total scaps = 50-75% 2g.
Herring Gull 761N 2cy (argenteus), April 06 2009, Boulogne-sur-Mer, France. Picture: J-M Sauvage.
Nice illustration for the low-pace scapular moult which continues in winter argenteus. Many scapulars replaced: us = 75-99% 2g; ls = 75-99% 2g; total scaps = 75-99% 2g.
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