Huge flock of knot (Calidris canutus) in flight, Snettisham RSPB reserve, Norfolk, England, United Kingdom, Europe

Holiday cottages along The Wash estuary in Snettisham, North Norfolk coast, East Anglia, England, United Kingdom

Large flock of waders, red knots (Calidris canutus) and oystercatchers (Haematopus ostralegus) above the alluvial area Wash, Snettisham, Norfolk, England

Large flock of waders, red knots (Calidris canutus) and oystercatchers (Haematopus ostralegus) above the alluvial area Wash, Snettisham, Norfolk, England

Tall reed stalks and feathery seedheads growing in shallow water in the fens near Snettisham in Norfolk, Snettisham, Norfolk, England

Tall reed stalks and feathery seedheads growing in shallow water in the fens near Shettisham in Norfolk, Snettisham, Norfolk, England