LBBG graellsii 2cy H490 February 25 2008, La Séguinière, SW France. Picture: Alain Fosse.
Ring series used at Amrum & Helgoland Islands, N Germany; two colonies in the transition zone between continental graellsii ("Dutch intergrade") and Scandinavian intermedius. Project run by: Sönke Martens.
Scapulars replaced. Exact wing-covert moult stage hard to determine.
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