Guy Edwardes / 2020VISION / View of the River Test at dawn, with Canada geese (Branta canadensis), Testcombe, near Stockbridge, Hampshire, England, UK, May 2012.

Markus Varesvuo / Whooper Swan (Cygnus cygnus) standing in snowfall,Hokkaido, Japan, February

Graham Eaton / Mallard (Anas platyrhynchos) drake on lake with autumn reflections, Lancashire, UK, November

Jack Dykinga / Snow geese (Anser caerulescens) flock landing and taking off at Bosque del Apache National Wildlife Refuge, New Mexico. January.

Espen Bergersen / Adult male King eiders (Somateria spectabilis) Batsfjord, Norway, March.

Peter Cairns / 2020VISION / Goldeneye duck (Clangula bucephala) male on Loch Vaa at dawn, Cairngorms National Park, Highlands, Scotland, UK, April 2011

Mike Potts / Three Trumpeter swans (Cygnus buccinator) feeding at ice edge, two up-ending, resting during their long flight north to the breeding grounds of Alaska, Marsh Lake, Yukon, Canada, April

George Sanker / Common Merganser (Mergus merganser) in flight low over water. Grand Teton National Park, Wyoming, USA, June.

Espen Bergersen / Female King Eider (Somateria spectabilis) portrait, Batsfjord, Norway, March.

Andrew Parkinson / Whooper swan (Cygnus cygnus) adult aggressively chasing another, UK visitor between November and March. Lancashire, UK, October.

Andrew Parkinson / Mute swan (Cygnus olor) abstract view of neck as it feeds, Derbyshire, UK, April.

Edwin Giesbers / Ruddy shelduck (Tadorna ferruginea) on water, captive