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2cy Lesser Black-backed Gull/2kj Kleine Mantelmeeuw



Lesser Black-backed Gull - Kleine Mantelmeeuw - Larus fuscus

Lesser Black-backed Gull - Kleine Mantelmeeuw - Larus fuscus

Lesser Black-backed Gull - Kleine Mantelmeeuw - Larus fuscus

1: © Ruud Altenburg, 18-06-06; 2-3: © Mars Muusse, 23-06-06. Erasmusgracht, Amsterdam. Pale 2cy Lesser Black-backed Gull. Majority of visible coverts and tertials renewed; tail and arm juvenile. Primary moult score: P1-2 growing, P3-4 missing and P5-10 juvenile. Lichte 2kj Kleine Mantelmeeuw. Merendeel van de zichtbare dekveren en tertials vernieuwd; staart en arm juvenie. Handpenscore: P1-2 groeiend, P3-4 ontbrekend en P5-10 juveniel.


Lesser Black-backed Gull - Kleine Mantelmeeuw - Larus fuscus

4: © Ruud Altenburg, 09-07-06. Erasmusgracht, Amsterdam. Three weeks later several median coverts have been dropped. Drie weken later zijn verschillende middelste dekveren uitgeworpen.


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