Mongolian Gull Larus (?) mongolicus
Feb. 5th 2013 Choshi Chiba Japan

The Mongolian Gull with a Vega Gull in the background. Note the somewhat cachinnans-like longish structure, white head and bill pattern.

The Mongolian Gull with 2 Vega Gulls in the background. Most Vega Gulls are still in full winter plumage in this time of year.

Note the mixed leg color; pink webs and yelowish tibia.

Four Vega Gulls in the background show purer/deeper pink legs.

Black markings range P10-P3.