Larus armenicus

(last update: December 9, 2011)

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Larus armenicus adults, 15 October 2010, Maagan Michael, Israel. Picture: Amir Ben Dov.

Adult armenicus at the beach. Bird with no old primaries in the wing: P10 has been dropped as well. This is the final stage of the complete moult. Simultaneously, birds finish the moult in the rectrices and finally the gap in the central secondaries will close as well. Common moult stage by mid October is: P7 fully grown, with no old primaries left.

P7 fully grown, P8 halfway in length. S1-S3 replaced/growing. Gap in central secondaries and a small group of old feathers still present (S13-S18 appr.) in the right wing. In the left wing (bottom picture) there is a discontinuity in the secondary moult sequence.