Gull i/d
Dear K N
Forgive if I mistake about your name.
For the three photos available I would venture that this is possibly a first-winter Yellow-legged
gull mongolicus for the following reasons.
First, the bill looks smaller than that of a Vega. Next, the primaries and tail band look blackish rather than brown. And the tail band contrasts significantly with the upper-tail coverts and a Vega 1st winter does not. Finally the light gray mantle also suggests it be a mongolicus.
It is welcome for someone to point out if my observation is wrong or add their own to mine.
