Espen Bergersen / Male King eiders (Somateria spectabilis) three taking-off from water. Batsfjord, Norway, March.

Graham Eaton / Male Mallard {Anas platyrhynchos} swimming on water, split level view, Wales, UK, 2006

Roy Mangersnes / Mute swan (Cygnus olor) resting, Estonia, February

Andy Rouse / Mandarin Duck (Aix galericulata) male on lake, UK, April.

Marie Read / Canada goose (Branta canadensis) adult swimming leading five goslings, Ithaca, New York, USA.

Matthew Maran / Mute swans (Cygnus olor) Highgate Ponds, Hampstead Heath, London, UK, February.

Graham Eaton / Gadwall (Anas strepera) drying its wings, London Wetland Centre, UK, August

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

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.

Ross Hoddinott / 2020VISION / Mute swan {Cygnus olor} on water with reflection, Shapwick Heath (Somerset Wildlife Trust) Nature Reserve, Somerset Levels, Somerset, UK. March

Peter Cairns / Greylag Goose (Anser anser) in pouring rain, Cairngorms NP, Higlands, Scotland, UK, May

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

Mark Hamblin / 2020VISION / Greylag goose (Anser anser) adult on water, Scotland, UK, May 2010

Laurie Campbell / Mute swan (Cygnus olor) on River Tweed at sunset, Berwickshire, Scotland, January 2009

Ernie Janes / Mute swan (Cygnus olor) immature changing feathers of young bird, UK

Ben Hall / Whooper swans (Cygnus cygnus) group in flight at dusk, Lancashire, UK December

Fergus Gill / 2020VISION / Greylag Goose (Anser anser) foraging in snow. Glasgow, Scotland, December.

Fergus Gill / 2020VISION / Whooper Swan (Cygnus cygnus) foraging in urban loch. Scotland, November.

Michel Poinsignon / Mute swan (Cygnus olor) adult on water in threat posture before courtship display, Lorraine, France, January.

Terry Whittaker / 2020VISION / Canada geese (Branta canadensis) standing on frozen lake, Reddish Vale, Manchester, England, UK, December, (This image may be licensed either as rights managed or royalty free.)

Danny Green / Trumpeter Swans (Cygnus buccinator) on river surrounded by ice, Yellowstone, USA, February.

Matthew Maran / Canada goose (Branta canadensis) gosling portrait, Hornsey, London, UK May

Ben Cranke / King Eider (Somateria spectabillis) male swimming in Batsfjord Norway, February.

Peter Cairns / 2020VISION / Mute swan (Cygnus olor) on River Spey at dawn, Cairngorms National Park, Scotland, UK, May.

Andy Trowbridge / Greylag goose (Anser anser) in water flapping wings. Southern Norway, July.

Ben Hall / Mute swan (Cygnus olor) stretching its wings backlit at dawn, Poynton, Cheshire, UK, December. Highly honoured in the Bird Category of the Windland Awards of Natures Best Photography Competition 2016...

Visuals Unlimited / Goldeneye (Bucephala clangula) male swimming in a lagoon and performing its mating display in Victoria, British Columbia, Canada.

Erlend Haarberg / Whooper swan (Cygnus cygnus) calling, Nidelve River. Klaebu, Sor-Trondelag, Norway, December.

Andy Trowbridge / Mallard ducks (Anas platyrhynchos) large group feeding, motion blur image, Southern Norway. January.

Sergey Gorshkov / Snow geese (Chen caerulescens caerulescens) flying in habitat, Wrangel Island, Far Eastern Russia, May.

Guy Edwardes / 2020VISION / Flock of Mute swans (Cygnus olor), Abbotsbury Swannery, Dorset, England, UK, September. Did you know? Swans can put one leg on their backs and use it to thermoregulate in the same way as elephants use...

Andy Rouse / Mandarin Duck (Aix galericulata) male on lake, UK, April.

Peter Cairns / Snow Goose (Chen caerulescens) in flight in evening light, Bosque del Apache, New Mexico, USA, December.

Peter Cairns / Snow Goose (Chen caerulescens) with beak under wing at dawn, Bosque del Apache, New Mexico, USA, December.

Roy Mangersnes / Female Longtailed duck (Clangula hyemalis) resting among flowering Purple saxifraga (Saxifraga oppositifolia) outside Longyearbyen, Spitsbergen, Svalbard, Norway, July.

Graham Eaton / Mute Swan (Cygnus olor) feeding in the evening in lake water at dusk, Gwynedd, Wales, UK. Split level

Bernard Castelein / Canada geese (Branta canadensis) with large 'creche' of goslings at sunrise, Antwerp, Belgium, May.

Graham Eaton / Male Mute Swan (Cygnus olor) feeding, UK. Water level shot

Jack Dykinga / Snow geese (Anser caerulescens) flock taking off with a setting moon over the Chupadera Mountains in the background. Snow geese and sandhill cranes (Grus canadensis) yet to leave remain on the ice cov...

Markus Varesvuo / Whooper Swan (Cygnus cygnus) flying during snowfall, Hokkaido, Japan, February