Heuglin's Gull L.heuglini taimyrensis
10th March 2001 Gyotoku Ichikawa Chiba Japan
|This bird shows strong individuality.
Very large red bill-spot, long tip of upper mandible.
Especially, the combination between strong-marked head
and pure white lower neck and breast looked singular in the gull-flock.
Note the yellowish leg, light built body, and long primaries
The mantle shade was a little darker than vegae.
Its wings show extended black on primaries and 1 small mirror on P10
|Generally, this bird seems to be
a male-type taimyrensis
or taimyrensisXbirulai in its orange-yellow legs and large bill-spot.
But this bird resembles "yellow-legged mongolicus " too
in its rather long head/bill/body structure.
The mantle shade is not darker than vegae .
Sakawagawa-river Odawara Kanagawa Japan,
December 14th. 2000.
This bird is smaller than vegae.
The mantle shade is similar to black-tailed gull.