Heuglin's Gull Larus heuglini heuglini
Jan. 17th 2012
Choshi Chiba Japan
This Heuglin's Gull suddenly came into the harbor and
was hanging around for a few minutes. Its dark and slim overall appearance
very like Lesser Black-backed Gull stood out among Vega
Gulls. At least I found no obvious features that suggested
'taimyrensis' such as a palish 'window' on inner
Note the dark inner
primaries that do not form a pale 'window'.
dark, pointed wings look very like Lesser Black-backed Gull. The greater
covert bar looks similar-toned to the secondaries.
The underparts in
flight look sharply mottled, and are not uniform or soft-spotted like Vega
Gulls and many 'Taimyr Gulls'