Slaty-backed Gull Larus schistisagus
16th October 2002 Sakawagawa-river Odawara Kanagawa Japan
Juv/1stwinter. Primaries are brownish, not black.
Same bird as above. But in this
situation, it looks blackish like Vega Gulls because of the
light condition.
A diffrent individual.
Vega Gull (left), Slaty-backed Gull
(right)
A dark individual resembling simithsonianus.
But the primaries are not really blackish in better light.
