Adult Steppe Gull (Larus (c.?) barabensis).
This bird has a rather thick black subterminal band on the bill,
but it is rather blurry on the edges - espescially on the lower
mandible. A significant minority of birds had this sloping forehead
and rounded rearcrown (the majority had a slightly more rounded
forehead). Note the unusually dark eye on this individual; it
is possible that this is a nominate cachinnans, but the
darkness of the mantle and the brightness of the legs and bill
are far more typical of most barabensis:
