The Lesser Black-backed Gull is smaller and greyer than the Great Black-backed and has yellow legs.
It breeds in far northern Europe and winters in mainly coastal areas of temperate Europe, Africa, South Asia and even the eastern USA.
It has red eye-liner.
It's a boring life.
With crab on the Thames at low tide.
Adult Lesser Black-backed Gulls, like many other gulls, have a red spot on the lower beak.
Young adults have a streaky head.
Size comparison with Black-headed Gull
Size comparison with Herring Gull
The Lesser Black-backed Gull above right was ringed in northern Spain as a youngster; it was photographed in
southeastern UK (above) and later in northern Germany and a year later it was back in southeastern UK - information from the
number on its leg ring.