Larus armenicus 1cy, October 01 2011, Ashdod, Israel. Picture: Amir Ben Dov.
Right bird with lower scapulars replaced for 2nd gen, and a few coverts as well. Juvenile feathers look slightly worn already. Left bird obvious more retarded regarding moult, and juvenile wing-coverts still extremely neat, indicating it might have arrived from the Russian tundra, and probably is 1cy heuglini.

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