David Tipling / Rooks (Corvus frugilegus) gathering at roost in snowy woodlands. Buckenham, Norfolk,January

David Tipling / Two male Wigeon (Anas penelope) in courtship chase with female, Buckenham Marshes, Norfolk, England, winter

David Tipling / Flock of Rooks (Corvus frugilegus) sitting on telephone wires, at pre-roost gathering in winter, Buckenham, Norfolk, England

David Tipling / Flock of Rooks (Corvus frugilegus) sitting on telephone wires, at pre-roost gathering in winter, Buckenham, Norfolk, England

David Tipling / 2020VISION / Rooks (Corvus frugilegus) gathering on overhead cables prior to roosting, Buckenham, Norfolk, England, UK, January

David Tipling / 2020VISION / Rooks (Corvus frugilegus) taking off from pre-roost gathering in tree, Buckenham, Norfolk, England, UK, January

David Tipling / 2020VISION / Rooks (Corvus frugilegus) at pre-roost gathering on telegraph wire, Buckenham, Norfolk, England, UK, January

David Tipling / 2020VISION / Rooks (Corvus frugilegus) at pre-roost gathering on overhead wire, Buckenham, Norfolk, England, UK, January

David Tipling / Rooks (Corvus frugilegus) gathering prior to roosting, Buckenham, Norfolk, February.

David Tipling / Rooks (Corvus frugilegus) gathering prior to roosting, Buckenham, Norfolk, February.

Robin Chittenden / Wigeon (Anas penelope) female, Buckenham Marshes RSPB, Norfolk, UK, December

Robin Chittenden / Wigeon (Anas penelope) female, Buckenham Marshes RSPB, Norfolk, UK, December

Robin Chittenden / Wigeon (Anas penelope) female, Buckenham Marshes RSPB, Norfolk, UK, December

Robin Chittenden / Wigeon (Anas penelope) female, Buckenham Marshes RSPB, Norfolk, UK, December

Robin Chittenden / Rook (Corvus frugilegus) flock in flight. Buckenham Marshes RSPB, Norfolk, UK, November.

Robin Chittenden / Wigeon (Anas penelope) flock taking flight. Buckenham Marshes RSPB, Norfolk, UK, November.

David Tipling / European wigeon (Anas penelope) in flight. Buckenham Marshes RSPB Reserve, Norfolk, UK, winter

David Tipling / European wigeon (Anas penelope) male calling, among a flock. Buckenham Marshes RSPB Reserve, Norfolk, UK, winter

David Tipling / Frozen dyke in winter, on Buckenham Marshes RSPB Reserve, Yare Valley, Norfolk, England

David Tipling / Large mixed flock of Rooks (Corvus frugilegus) and Jackdaws (Corvus monedula) arriving at winter roost at Buckenham, Yare Valley, Norfolk, England

David Tipling / Large flock of Rooks {Corvus frugilegus} flying to roost, Buckenham, Norfolk, UK, December

Chris Gomersall / Buckenham Marsh in winter, Mid Yare RSPB, Norfolk, UK

Nick Barwick / Drainage dyke at Buckenham Marsh RSPB Reserve, Norfolk, UK host to rare & common flora

Nick Barwick / Lapwing chick with unique metal number ring {Vanellus vanellus} Buckenham Marsh Norfolk UK - Mid Yare RSPB Reserve

David Tipling / Wigeon (Anas penelope) flock on water in marshland, Buckenham Marshes RSPB Reserve, Norfolk, UK.

David Tipling / Wigeon (Anas penelope) flock feeding on marshland, Buckenham Marshes RSPB Reserve, Norfolk, UK.