Heuglin's Gull Larus heuglini taimyrensis
( or taimyrensis /vegae.birulai intergrades?)
11th.November 2000Choshi Chiba Japan
Head streaking looks finer or sharper than vegae, and usually lacks cloud-like soft marking.
Note the yellowish legs, large red bill-spot, later molt-timing, compared with Vega Gull.
Vega Gull  for comparison, molt-states on the same date.

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