Larus armenicus 3cy, 15 December 2010, Maagan Michael, Israel. Picture: Amir Ben Dov.
Much like previous bird, but P10 slightly longer, P10 still not fully grown. Bill with much markings. 3cy individual, with obvious mirror on P10. No black on three inner primaries (adult-like P1-P3), white tail with very limited solid black markings, and almost no black on primary coverts and secondary centres.
This 3cy age-class may still show some black centres in the secondaries, and in almost all 3cy December birds, the greater primary coverts have extensive brownish centres. There may also be some pattern in the feathers of the carpal edge.
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