Adult summer>>winter
Vega Gull Larus vegae
Oct. 15th 2004 Tamagawa-river Kawasaki Kanagawa Japan

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Both individuals are still summer plumage, except inner primaries that are invisible here.

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This is starting to show some winter mottiling on its face. The visible folded primaries are old.

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This individual is still summrer plumage, and has complete white head. Note that the visible folded primaries are old.

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Molting from subadult summer? to adult winter.

	P10-P7 are old.
Its P1-P4 do not have any black marking.

Slaty-backed Gull (left), Vega Gull (right)
Note the difference of their molt timing.

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This had some yellowish tone on its legs. A simple yellowish-legged Vega Gull? or a 'taimyrensis'-influenced individual?