Great Black-backed Gulls, Hyde Park

I've only seen one GBBG on The Serpentine before and that was a sub-adult bird pointed out to me. Today I was lucky enough to see a fully grown beast for ten minutes before it flew south-west, presumably back to the River Thames. During its stay it was also joined by a first winter bird (both pictured here). That was a new one for my patch year list.


A few minutes later I ran into, what now seems likely to be a wintering bird (?), a smart adult Yellow-leged Gull in the same spot as seen twice before (Fisherman's Keep: PDF file).