This is a great knot video.
From Wildlife Extra:
Extremely rare bird draws a huge crowd in Norfolk
Most of the latter sightings were so distant, however, that that bird was nicknamed the ‘great dot’.
Great knots breed in the tundra of Siberia and winter on the coasts of southern Asia and Australia, travelling between the two in large flocks. Somewhere on its migration, this bird strayed off course, lost its companions and ended up in East Anglia.
Like other calidrids, such as sandpipers, stints and dunlin, the great knot probes mudflats and beaches with its sensitive bill searching for mollusc prey. This specialised bill contains numerous nerve-endings known as Herbst corpuscles to enable the bird to sense the tiny movements of prey buried in the wet mud.
This particular great knot, oblivious to its legions of admirers behind rows of telescopes, enjoyed the delicacies of Norfolk coastal mud for a few days before moving on.