John Waters / Mixed flock of Wigeon (Anas penelope) and Northern lapwings (Vanellus vanellus) disturbed by hunting Marsh Harrier (Circus aeruginosus), Greylake RSPB Reserve, Somerset Levels, England, UK, December.

Nick Upton / Panning shot of partially flooded pastureland with large flocks of Wigeon (Anas penelope), Lapwings (Vanellus vanellus) and Golden plover (Pluvialis apricaria) in flight, Gloucestershire, England, UK,...

Nick Upton / Panning shot of a flock of Lapwings (Vanellus vanellus) landing on partially flooded pastureland near resting Black-tailed godwits (Limosa limosa) and grazing Wigeon (Anas penelope), Gloucestershire,...

Mike Read / Red crested pochard duck male {Netta ruffina} Arundel, Sussex, UK

Oscar Dewhurst / Crested duck (Lophonetta specularioides) walking on a frozen Andean lake. Arequipa, Peru. September. Cropped

David Tipling / Red-crested pochard (Netta rufina) male London, England, UK. October

Debapratim Saha/ BIA / Red-crested Pochard (Netta rufina) male flying, West Bengal, India

Mike Read / Crested duck (Lophonetta specularioides specularioides) adult and three ducklings in a freshwater pool, Bleaker Island, Falkland Islands, December.

Glenn Bartley/ BIA / Crested Duck (Lophonetta specularioides) calling, Falkland Islands

Bernard Castelein / Crested Duck (Anas specularioides) Laguna Canapa, Altiplano, Bolivia

Bernard Castelein / Crested duck (Anas specularioides) at Laguna Hedionda, Altiplano, Bolivia

Bernard Castelein / Crested duck (Anas specularioides) two resting on shore of Laguna Canapa, Altiplano, Bolivia

Agustin Esmoris / Crested Duck (Lophonetta specularioides), Puerto Madryn, Argentina

Agustin Esmoris / Crested Duck (Lophonetta specularioides), Puerto Madryn, Argentina

John Waters / Wide-angle shot of Wigeon (Anas penelope) and Northern lapwings (Vanellus vanellus) resting in flooded marsh, Catcott Lows Nature Reserve, Somerset Levels, England, UK, December.

John Waters / Wide-angle shot of Wigeon (Anas penelope) and Northern lapwings (Vanellus vanellus) resting in flooded marsh, Catcott Lows Nature Reserve, Somerset Levels, England, UK, December.

Claudio Contreras / Crested duck (Lophonetta specularioides), Carcass Island, Falkland Islands, October

Claudio Contreras / Crested duck (Lophonetta specularioides) pair, Sea Lion Island, Falkland Islands, October

Claudio Contreras / Crested duck (Lophonetta specularioides) pair, Kidney Island, Falkland Islands, October

Nick Upton / Wigeon (Anas penelope) preening and grazing on partially flooded pastureland, with Lapwings (Vanellus vanellus) in the background, Gloucestershire, England, UK, January.

Nick Upton / Large mixed flock of Wigeon (Anas penelope) and Lapwings (Vanellus vanellus) taking off and in flight, over partially flooded pastureland, with alert BewickÕs swans (Anser columbianus bewickii) in the...

Nick Upton / Large mixed flock of Wigeon (Anas penelope) and Lapwings (Vanellus vanellus) in flight, Gloucestershire, England, UK, January.

Nick Upton / Large mixed flock of Wigeon (Anas penelope) and Common Teal (Anas crecca) swimming on partially flooded pastureland, with Lapwings (Vanellus vanellus) taking off and flying overhead, Gloucestershire,...

Nick Upton / Large flock of Lapwings (Vanellus vanellus) taking off from partially flooded pastureland, with Wigeon (Anas penelope), Shoveler (Anas clypeata) and Black-tailed godwits (Limosa limosa) foraging and r...

Nick Upton / Large mixed flock of Wigeon (Anas penelope) and Common Teal (Anas crecca) swimming on partially flooded pastureland, with Lapwings (Vanellus vanellus), Black-tailed-godwits (Limosa limosa) and Golden...

Nick Upton / Large mixed flock of Wigeon (Anas penelope) and Common Teal (Anas crecca) swimming on partially flooded pastureland, with Lapwings (Vanellus vanellus) taking off, flying overhead and landing, Gloucest...

Nick Upton / Panning shot of a large flock of Wigeon (Anas penelope) landing then taking off from a partially flooded pastureland, along with Black-tailed godwits (Limosa limosa) and Lapwings (Vanellus vanellus),...

Nick Upton / Shoveler (Anas clypeata) drakes, landing on, preening and taking off from flooded pastureland, with a mixed flock of Common teal (Anas crecca), Pintail (Anas acuta), Wigeon (Anas penelope) and Lapwing...

Nick Upton / Pintail (Anas acuta) somersaulting to bathe and flapping its wings in a marshland pool, slow motion, with a Lapwing (Vanellus vanellus) in the background, Gloucestershire, England, UK, February.

Nick Upton / Panning shot of a large flock of Lapwings (Vanellus vanellus) in flight and landing near a mixed flock of Wigeon (Anas penelope), Shoveler (Anas clypeata), Pintail (Anas acuta) and Canada geese (Brant...

Nick Upton / Panning shot of a mixed flock of Lapwings (Vanellus vanellus) and Wigeon (Anas penelope) flying over and landing on flooded pasture, slow motion clip, Gloucestershire, England, UK, January.

Nick Upton / Large flock of Lapwings (Vanellus vanellus) descending to land on partly flooded pasture, with Pochard (Aythya ferina) and Tufted duck (Aythya fuligula) swimming in the foreground, Gloucestershire, En...

Nick Upton / Tilt shot up from flooded pasture to show large flocks of Lapwing (Vanellus vanellus) and Wigeon (Anas penelope) in flight due to the presence of a hunting Peregrine falcon (Falco peregrinus), Glouces...

Nick Upton / Lapwings (Vanellus vanellus) taking off from flooded pasture, with Wigeon (Anas penelope) swimming in the background, slow motion clip, Gloucestershire, England, UK, January.

Nick Upton / Mass take off of flocks of Lapwings (Vanellus vanellus), Wigeon (Anas penelope), Black-tailed godwit (Limosa limosa) and Canada geese (Branta candensis) due to the presence of a hunting Peregrine fal...

Nick Upton / A pair of Common cranes (Grus grus) 'Monty' and 'Chris' reintroduced by the Great Crane Project walking on a flooded pasture past resting BewickÕs swans (Cygnus columbianus), Wigeon (Anas penelope) an...

Nick Upton / Two Common cranes (Grus grus) 'Monty' and 'Chris' reintroduced by the Great Crane Project preening on a flooded pasture amongst foraging Wigeon (Anas penelope) and Lapwings (Vanellus vanellus), Glouce...

Nick Upton / Canada geese (Branta canadensis) grazing on flooded pasture in heavy rain, with Wigeon (Anas Penelope), Lapwings (Vanellus vanellus) and BewickÕs swans (Cygnus columbianus bewickii) foraging in the ba...

Nick Upton / Shoveler (Anas clypeata) and Canada geese (Branta canadensis) swimming on flooded pasture, with a large flock of Lapwings (Vanellus vanellus) in flight, Wigeon (Anas Penelope), Pintail (Anas acuta), B...

Nick Upton / Canada geese (Branta canadensis) preening on flooded pasture, with Golden plover (Pluvialis apricaria) landing in the background to join Shelduck (Tadorna tadorna), Mute swans (Cygnus olor), Wigeon (A...

Nick Upton / Canada geese (Branta canadensis) preening on flooded pasture, with Lapwings (Vanellus vanellus) landing in the background alongside a mixed flock of resting Black-tailed godwits (Limosa limosa) and fo...

Glenn Bartley/ BIA / Crested Duck (Lophonetta specularioides) on pond, Falkland Islands

Glenn Bartley/ BIA / Crested Duck (Lophonetta specularioides) in defensive display, Falkland Islands

Marcos Baumann/ BIA / Crested Duck (Lophonetta specularioides) flying, Chile

Bernard Castelein / Crested duck (Anas specularioides) female, altiplano, Bolivia September

Bernard Castelein / Crested duck (Anas specularioides) female, altiplano, Bolivia September

Robin Chittenden / Red-crested Pochard (Netta rufina) Norfolk, England, UK, February.

Mike Read / Crested duck (Lophonetta specularioides specularioides) walking along the shore. Bleaker Island, Falkland Island. November.

Mike Read / Crested duck (Laphonetta specularioides specularioides) pair on the shore, Saunders Island Falkland Islands, November

Jussi Murtosaari / Red-crested pochard (Netta rufina) group of males, Muurame, Finland, March.

Konrad Wothe / Red-crested Pochard (Netta rufina) male, Germany

Brent Stephenson / Crested duck (Lophonetta specularioides) on beach at waters edge, Carcass Island, Falkland Islands, South Atlantic, December.

Brent Stephenson / Crested duck (Lophonetta specularioides) walking across sand, Carcass Island, Falkland Islands, South Atlantic, December.

Brent Stephenson / Crested duck (Lophonetta specularioides) with duckling feeding in shallow water just off the beach, Carcass Island, Falkland Islands, South Atlantic, December.

Nick Upton / Group of Northern shoveler (Anas clypeata) swimming on flooded pasture land with Wigeon (Anser penelope) and Lapwings (Vanellus vanellus) in the background, Gloucestershire, UK, January.

Nick Upton / Three drake Northern shovelers (Anas clypeata) and a duck in a courtship flight over flooded pastureland with resting Lapwings (Vanellus vanellus) and Wigeon (Anas penelope), Gloucestershire, UK, Febr...

Nick Upton / Dense flock of Lapwings (Vanellus vanellus) in flight over mixed flock of Wigeon (Anas penelope) and Northern pintail (Anas acuta) resting on flooded pastureland, Gloucestershire, UK, January.

David Tipling / Red-crested Pochard (Netta rufina) male on Lake Geneva, Switzerland, March.

David Tipling / Red-crested Pochard (Netta rufina) males on Lake Geneva, Switzerland, March.

David Tipling / Red-crested Pochard (Netta rufina) female on Lake Geneva, Switzerland, March.

David Tipling / Red-crested Pochard (Netta rufina) male on Lake Geneva, Switzerland, March.

David Tipling / Red-crested Pochard (Netta rufina) male on Lake Geneva, Switzerland, March.

David Tipling / Red-crested Pochard (Netta rufina) male on Lake Geneva, Switzerland, March.

David Tipling / Red-crested Pochard (Netta rufina) male on Lake Geneva, Switzerland, March.

Hanne & Jens Eriksen / Red crested pochard (Netta rufina) males on water, Oman, January

Fabrice Cahez / Great Crested Grebe (Podiceps cristatus) and Mallard duck and drake (Anas platyrhynchos) on lake at dawn, Vosges, France, October 2013.

Jan Wegener / Red-crested Pochard (Netta rufina) drake, Germany

Jan Wegener / Red-crested Pochard (Netta rufina) female, Germany

Ralph Martin / Red-crested Pochard (Netta rufina) male, Bavaria, Germany

Patrick Donini / Red-crested Pochard (Netta rufina) mating pair, Saint Gallen, Switzerland

E.J. Peiker / Crested Duck (Lophonetta specularioides), Falkland Islands

E.J. Peiker / Crested Duck (Lophonetta specularioides), Falkland Islands

Jan Wegener / Red-crested Pochard (Netta rufina) male, Brandenburg, Germany

Nick Upton / Lapwings (Vanellus vanellus), Jackdaws (Corvus monedula) and Golden plover (Pluvialis apricarius) flying over flooded pastureland with mix of Greylag geese (Anser anser), Shelduck (Tadorna tadorna), W...

Laurent Geslin / Red crested Pochard (Netta rufina) male on Lake Leman / Geneva, Switzerland

Juan Manuel Borrero / Illustration of threatened species of birds of Spain. Iberian Guillemot (Uria aalge ibericus), Cantabrian capercallie (Tetrao urogallus cantabricus), White backed woodpecker (Dendrocopos leucotos), Be...

Rod Williams / Patagonian Crested Duck (Anas / Lophonetta specularoides specularoides) portrait. Captive. Endemic to Chile, Argentina, Tierra del Fuego and the Falkland Islands. UK, April.

Pete Oxford / Crested Duck (Lophonetta specularioides), Stanley, East Falkland Island, Falkland Islands

Pete Oxford / Portrait of a Patagonian Crested duck (Lophonetta / Anas specularioides) Port Stanley. East Falkland Island. Falkland Islands

Pete Oxford / Portrait of a Patagonian Crested duck (Lophonetta specularioides) Port Stanley. East Falkland Island. Falkland Islands

Michel Poinsignon / Red-crested pochard {Netta rufina} male on water, captive, Zoo d'Amnéville, Lorraine, France

Michel Poinsignon / Red-crested pochard {Netta rufina} female on water, captive, Zoo d'Amnéville, Lorraine, France

Pete Oxford / Crested Duck (Lophonetta specularioides) with duckling, Carcass Island, Falkland Islands

Pete Oxford / Crested Duck (Lophonetta specularioides), Carcass Island, Falkland Islands

Pete Oxford / Crested Duck (Lophonetta specularioides) swimming, Steeple Jason Island, Falkland Islands

Alan Williams / Red crested pochard (Netta rufina) male on water, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male on water, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male on water, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male on water, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male calling on water, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male on water with crest up, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male in flight, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male taking off from water, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male bathing, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male in flight over water, feral bird, introduced species, Norfolk, UK, March

Alan Williams / Red crested pochard (Netta rufina) male in flight over water, feral bird, introduced species, Norfolk, UK, March