Vega Gulls Larus vegae
October 25th 2006 Miura Kanagawa Japan
-and may include some non-pure vegae ('taimyrensis').
Note that most individuals still have some old primaries.
Same individual as above.
4th? winter showing an advanced primary molt. This primary molt overlaps with Mongolian Gull. But the dense and soft mottling on the neck/breast is likely to be Vega Gull rather than Mongolian Gull.
The individual on the right seems to have a black marking on P3 and slight yellowish tone in its legs. Those features may suggest this individual is a non-pure Vega Gull.