David Pattyn / European pochard (Aythya ferina) drake male on a misty morning, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, May

David Pattyn / European pochard (Aythya ferina) female on a misty morning, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, May

David Pattyn / European pochard (Aythya ferina) male and female. Couple, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / European pochard (Aythya ferina) male / drake, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / European pochard (Aythya ferina) male drake in flight, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, March

David Pattyn / European pochard (Aythya ferina) yound chick preening its feathers, Valkenhorst Nature Reserve, Valkenhorst, the Netherlands, July

Pedro Narra / Common pochard (Aythya ferina) on water, Sado Estuary, Portugal. April

Hermann Brehm / Pochard (Aythya ferina) male, Germany, May.

Robin Chittenden / Tufted duck (Aythya fuligula) male with eel in beak, surrounded by Eurasian coots (Fulica atra) and female tufted ducks. Norfolk, England, UK. January.

Mike Read / Common pochard (Aythya ferina) female on mat of vegetation with European pond terrapin (Emys obicularis) in the lake at Quinta do Lago, part of the Ria Formosa Nature Reserve, Algarve, Portugal, Febru...

Nick Upton / Wide angle view of a mixed flock of Tufted ducks (Aythya fuligula), Coots (Fulica atra) and Wigeon (Anas penelope), with Normanton church in the background, Rutland Water, Rutland, England, UK, Novemb...

Nick Upton / Tufted ducks (Aythya fuligula) and a Coot (Fulica atra) diving to forage in a shallow lake, before a Bewick's swan (Cygnus bewickii) swims in to feed, Gloucestershire, England, UK, December.

Nick Upton / Wide angle view of a mixed flock of Coots (Fulica atra), Wigeon (Anas penelope), Tufted duck (Aythya fuligula) and Gadwall (Anas strepera) swimming, dabbling and diving, Rutland Water, Rutland, Englan...

Nick Upton / Slow motion clip of a mixed flock of Coots (Fulica atra), Wigeon (Anas penelope), Tufted duck (Aythya fuligula) and Gadwall (Anas strepera) swimming, dabbling and diving, Rutland Water, Rutland, Engla...

Nick Upton / Panning shot of a mixed flock of Coots (Fulica atra), Wigeon (Anas penelope), Tufted duck (Aythya fuligula) and Gadwall (Anas strepera) swimming, dabbling and diving, Rutland Water, Rutland, England,...

Nick Upton / Mixed flock of Coots (Fulica atra), Wigeon (Anas penelope), Tufted duck (Aythya fuligula) and Gadwall (Anas strepera) swimming, dabbling and diving, Rutland Water, Rutland, England, UK, November.

Nick Upton / Mixed flock of Wigeon (Anas penelope), Coots (Fulica atra), Tufted duck (Aythya fuligula) and Gadwall (Anas strepera) dabbling, diving and competing aggressively by pecking one another, Rutland Water,...

Nick Upton / Mixed flock of Wigeon (Anas penelope), Coots (Fulica atra), Tufted duck (Aythya fuligula) and Gadwall (Anas strepera) dabbling, diving and competing aggressively by pecking one another, Rutland Water,...

Nick Upton / Flock of Coots (Fulica atra) swimming and dabbling alongside Tufted duck (Aythya fuligula) and Mute swans (Cygnus olor), Rutland Water, Rutland, England, UK, November.

Nick Upton / Flock of Coots (Fulica atra) diving and dabbling alongside Wigeon (Anas penelope), Tufted duck (Aythya fuligula) and Gadwall (Anas strepera), Rutland Water, Rutland, England, UK, November.

Nick Upton / Slow motion clip of a flock of Coots (Fulica atra) swimming, diving and dabbling alonside Wigeon (Anas penelope), Tufted duck (Aythya fuligula), Gadwall (Anas strepera) and a Mute swan (Cygnus olor),...

Nick Upton / Bewick's swan (Cygnus bewickii) dabbling in a lake near two Shelduck (Tadorna tadorna) and some diving Tufted ducks (Aythya fuligula), Gloucestershire, England, UK, December.

Roger Powell / Common Pochard (Aythya ferina) feeding by filtering food from the waters surface. Martin Mere WWT Reserve, Lancashire, UK. November.

Nick Upton / Raft of Pochard (Aythya ferina) and Tufted duck (Aythya fuligula) swimming away from the camera, Gloucestershire, England, UK, January.

Nick Upton / Shelduck (Tadorna tadorna) emerging from a lake and walking past a group of Pochard (Aytha ferina) resting on the shore, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Pair of Pochards (Aythya ferina) surfacing and diving whilst feeding on weed in a shallow marshland pool, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Two male Pochards (Aythya ferina) surfacing and diving whilst feeding on weed in a shallow marshland pool, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Two male Pochards (Aythya ferina) surfacing and diving whilst feeding on weed in a shallow marshland pool, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Close up of a Pochard (Aythya ferina) drake resting on the surface of a lake with one eye open, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Pochard (Aythya ferina) drake surfacing and diving whilst feeding on weed in a shallow marshland pool, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Pochard (Aythya ferina) drake surfacing and diving whilst feeding on weed in a shallow marshland pool, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Pochard (Aythya ferina) drake surfacing and diving whilst feeding on weed in a shallow marshland pool, slow motion clip, Gloucestershire, England, UK, February.

Nick Upton / Panning shot of Lapwings (Vanellus vanellus) taking off from partly flooded pastureland past swimming Pochard (Aythya ferina) and BewickÕs swans (Cygnus columbianus bewickii), Gloucestershire, England...

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...

Bernard Castelein / Common pochard (Aythya ferina) drake in flight, Antwerp, Belgium May

Bernard Castelein / Common pochard (Aythya ferina) drake in flight, Antwerp, Belgium May

Staffan Widstrand / Common pochard (Aythya ferina) swimming and preening on calm water, Pusztaszer protected landscape, Kiskunsagi, Hungary, May

Staffan Widstrand / Common pochard (Aythya ferina) cleaning its feathers, Pusztaszer protected landscape, Kiskunsagi, Hungary

Staffan Widstrand / Common Eurasian pochard (Aythya ferina) looking around whilst swimming, male, Pusztaszer Protected Landscape, Kiskunsagi, Hungary

Dong Lei / Baer's pochard (Aythya baeri) with White-eyed pochard (Aythya nyroca) Chengdu City, Sichuan Province, China.

Dong Lei / Mixed group of Baer's pochards (Aythya baeri) with White-eyed Pochards (Aythya nyroca) Chengdu City, Sichuan Province, China.

Loic Poidevin / Common pochards (Aythya ferina) mating, Parc naturel regional de la Brenne / Brenne Regional Nature Park, France, May

Loic Poidevin / Common pochard (Aythya ferina) France, April.

Nick Upton / Two European pochard drakes (Aythya ferina) swimming on flooded pastureland, Gloucestershire, UK, January.

Nick Upton / European pochard (Aythya ferina) female swimming on flooded marshland, Gloucestershire, UK, February.

Nick Upton / European pochard drake (Aythya ferina) preening as it swims on flooded pastureland, Gloucestershire, UK, January.

David Tipling / Common pochard (Aythya ferina) male on water, Norfolk, February.

David Tipling / Common pochard (Aythya ferina) male landing, Norfolk, February.

David Tipling / Common pochard (Aythya ferina) female, Norfolk, February.

Guy Edwardes / 2020VISION / Male Pochard (Aythya ferina) stretching, Catcott Lows SWT Reserve, Somerset Levels, England, UK, January.

Guy Edwardes / 2020VISION / Male Pochard (Aythya ferina) stretching, Catcott Lows SWT Reserve, Somerset Levels, England, UK, January.

Guy Edwardes / 2020VISION / Male Pochard (Aythya ferina) in flight, Catcott Lows SWT Reserve, Somerset Levels, England, UK, January.

Walter Soestbergen / Common Pochard (Aythya ferina) male, Utrecht, Netherlands

Jan Wegener / Common Pochard (Aythya ferina) drake flapping wings, Germany

Jan Wegener / Common Pochard (Aythya ferina) drake displaying, Germany

Jan Wegener / Common Pochard (Aythya ferina) female, Brandenburg, Germany

Jan Wegener / Common Pochard (Aythya ferina) male, Brandenburg, Germany

Jan Wegener / Common Pochard (Aythya ferina) female, Brandenburg, Germany

Jan Wegener / Common Pochard (Aythya ferina) 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...

David Pattyn / Fisherman arriving back at the shore with the catch, in this case he has also caught European pochard (Aythya ferina) illegally because hunting is strictly forbidden at the lake all year round. Lake K...

David Pattyn / Fisherman arriving back at the shore with the catch, in this case he has also caught European pochard (Aythya ferina) illegally because hunting is strictly forbidden at the lake all year round. Lake K...

Fabrice Cahez / Common Pochard (Aythya ferina) in flight. Brenne, France, May.

Jasper Doest / Common Pochard (Aythya ferina) drake preening, Friesland, Netherlands

Jasper Doest / Common Pochard (Aythya ferina) female preening, Friesland, Netherlands

Philippe Clement / Common pochard (Aythya ferina) male, swimming in pond, La Brenne, Indre, France. May.

Philippe Clement / Common pochard (Aythya ferina) female with chicks flapping wings in pond, La Brenne, Indre, France. May.

Bernard Castelein / Common pochard (Aythya ferina) pair in flight with reedbeds behind, Kruibeekse Polder, Belgium. April.

Bernard Castelein / Common pochard (Aythya ferina) male, in flight, Kruibeekse Polder, Belgium. April.

Joel Sartore / Photo Ark / Ferruginous ducks (Aythya nyroca) pair, portrait, Sylvan Heights Bird Park. Captive.

Joel Sartore / Photo Ark / Ferruginous duck (Aythya nyroca) male, head portrait, Sylvan Heights Bird Park. Captive.

Joel Sartore / Photo Ark / Ferruginous duck (Aythya nyroca) male, portrait, Sylvan Heights Bird Park. Captive.

Joel Sartore / Photo Ark / Ferruginous duck (Aythya nyroca) male, portrait, Palm Beach Zoo. Captive.

Joel Sartore / Photo Ark / Ferruginous duck (Aythya nyroca) male, head portrait, Palm Beach Zoo. Captive.

Robin Chittenden / Common pochard (Aythya ferina) female, on a pond, Norfolk, UK. June.

Mike Potts / Wintering flock of Common pochard (Aythya ferina) Ouse Washes Nature Reserve, Cambridgeshire, UK. February.

Mike Potts / Wintering flock of Common pochard (Aythya ferina) Ouse Washes Nature Reserve, Cambridgeshire, UK. February.

David Pattyn / European pochard (Aythya ferina) drake displaying flat posture during courtship, Valkenhorst Nature Reserve, The Netherlands, Europe. June.

Sylvain Cordier / Whooper swans (Cygnus cygnus) and Pochard (Aythya ferina) on lake, Sanmenxia, Henan province, China.

Sylvain Cordier / Adult male Pochard (Aythya ferina) swimming, Sanmenxia, Henan province, China.

Oscar Dewhurst / A domestic dog chases a common pochard (Aythya ferina) through the water, pursued by a pair of mute swans (Cygnus olor), with the dog's owner looking on from the path. Hyde Park, London. January

David Pattyn / European pochard (Aythya ferina) drake, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, August.

David Pattyn / European pochard (Aythya ferina) female in the first morning sunlight, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, August.

Oscar Dewhurst / Pochard (Aythya ferina) drake swimming after surfacing from a dive for food. London, England, UK. March

Hanne & Jens Eriksen / Common pochard (Aythya ferina) on water, Denmark, February