Larus armenicus sub-adult, 20 September 2010, Maagan Michael, Israel. Picture: Amir Ben Dov.
Bird in active complete moult. P1-P6 fully grown, P7 at 70%, P8 missing, P9-P10 still old. PMS = 35. Combination of mirror on P10 (3rd gen or older) and brown hue on centres of the secondaries and on the greater primary coverts indicate sub-adultness.
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