Mongolian Gull Larus cachinnans(?) mongolicus
March 15th 2005 Choshi Chiba Japan

More than 4 extremely whitish Mongolian Gulls were found among thousands of Vega Gulls on the day. I feel they often tend to be absent here during several months in mid-winter. This page captures one individual.

with a 1st w/s Slaty-backed Gull

with a 2nd winter Slaty-backed Gull

with a 1st winter Vega Gull.

with a 1st winter Vega Gull.

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(2 other individual on the same date)