John Shaw / Falklands flightless steamer duck (Tachyeres brachypterus) male on beach, scratching its head. Sealion Island, Falklands, November.

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) female displaying, Falkland Islands

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) female calling, Falkland Islands

Mike Potts / Falklands steamer duck (Tachyeres leucocephalus) brood of ducklings on shoreline. Port Stanley Harbour. Falkland Islands. January.

Mike Potts / Falklands steamer duck (Tachyeres leucocephalus) brood of ducklings on shoreline. Port Stanley Harbour. Falkland Islands. January.

Mike Potts / Falklands steamerduck (Tachyeres leucocephalus) adult bird perched on rock. Port Stanley Harbour. Falkland Islands, January.

Mike Potts / Falklands steamer duck (Tachyeres leucocephalus) adult bird perched on rock. Port Stanley Harbour. Falkland Islands. January.

Mike Read / Flightless steamer duck (Tachyeres brachypterus) ducklings resting on a beach, Sealion Island, Falkland Islands. December.

Mike Read / Flightless steamer duck (Tachyeres brachypterus) bathing in the sea Darwin, Falkland Islands, November.

Claudio Contreras / Falkland Steamer duck (Tachyeres brachypterus), West Point Island, Falkland Islands, October

Claudio Contreras / Flying Steamer duck (Tachyeres patachonicus) pair, Sea Lion Island, Falkland Islands, October

Claudio Contreras / Flying Steamer duck (Tachyeres patachonicus) courtship display, Sea Lion Island, Falkland Islands, October

Ingo Arndt / Falkland flightless steamerduck (Tachyeres brachypterus) pair on the beach, Volunteer Point, Falkland Islands, March

Ingo Arndt / Falkland flightless steamerduck (Tachyeres brachypterus) resting on beach during sandstorm, Falkland Islands, March

Ingo Arndt / Falkland flightless steamerduck (Tachyeres brachypterus) walking on beach, Volunteer Point, Falkland Islands, March

Brent Stephenson / Male Falkland steamer duck (Tachyeres brachypterus) sitting on sandy beach, Carcass Island, Falkland Islands, South Atlantic, December.

Brent Stephenson / Falkland steamer duck (Tachyeres brachypterus) ducklings resting together on sandy beach, Carcass Island, Falkland Islands, South Atlantic, December.

Brent Stephenson / Male Falkland steamer duck (Tachyeres brachypterus) sleeping, standing on a sandy beach, Carcass Island, Falkland Islands, South Atlantic, December.

Brent Stephenson / Male Falkland steamer duck (Tachyeres brachypterus) standing on a sandy beach, Carcass Island, Falkland Islands, South Atlantic, December.

Tim Laman / Falkland steamer duck (Tachyeres brachypterus) pair swimming, Carcass Island, Falkland Islands.

Rosl Roessner / Falkland Steamerduck (Tachyeres brachypterus) male

E.J. Peiker / Flying Steamerduck (Tachyeres patachonicus) females, Falkland Islands

E.J. Peiker / Flying Steamerduck (Tachyeres patachonicus) female and male, Falkland Islands

E.J. Peiker / Flying Steamerduck (Tachyeres patachonicus), Falkland Islands

Ingo Arndt / Falkland Steamerduck (Tachyeres brachypterus) walking on beach, Volunteer Point, Falkland Islands

Pete Oxford / Falkland Steamerduck (Tachyeres brachypterus) male, Stanley, East Falkland Island, Falkland Islands

Pete Oxford / Falkland Steamerduck (Tachyeres brachypterus) male displaying, Stanley, East Falkland Island, Falkland Islands

Konrad Wothe / Falkland Steamerduck (Tachyeres brachypterus) stretching wing, Falkland Islands

Roy Mangersnes / Flying Steamerduck (Tachyeres patachonicus) pair of the coast of Tierra Del Fuego, Argentina, South America. November.

Tui De Roy / Flightless Steamerduck (Tachyeres pteneres) pair on shore, Beagle Channel, Tierra del Fuego, Argentina

Pete Oxford / Falklands Steamerduck (Tachyeres brachypterus) mother with ducklings, Carcass Island, Falkland Islands

Pete Oxford / Falklands Steamerduck (Tachyeres brachypterus) mother with ducklings, Carcass Island, Falkland Islands

Pete Oxford / Falklands Steamerduck (Tachyeres brachypterus) evading other duck after lossing fight, Carcass Island, Falkland Islands

Pete Oxford / Falklands Steamerduck (Tachyeres brachypterus), Carcass Island, Falkland Islands

Pete Oxford / Falklands Steamerduck (Tachyeres brachypterus) pair fighting, Carcass Island, Falkland Islands

Pete Oxford / Falklands Steamerduck (Tachyeres brachypterus), Saunders Island, Falkland Islands

Hiroya Minakuchi / Falkland Steamerduck (Tachyeres brachypterus) mother and chicks foraging, Falkland Island

Colin Monteath / Falkland Steamerduck (Tachyeres brachypterus) mother with ducklings, Sea Lion Island, Falkland Islands

Colin Monteath / Falkland Steamerduck (Tachyeres brachypterus) mother with ducklings, Sea Lion Island, Falkland Islands

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) female sleeping, Falkland Islands

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) male, Falkland Islands

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) female in surf, Falkland Islands

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) female entering water, Falkland Islands

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) female, Falkland Islands

Agustin Esmoris / Falkland Steamerduck (Tachyeres brachypterus) female, Falkland Islands

Agustin Esmoris / Flying Steamerduck (Tachyeres patachonicus), San Carlos de Bariloche, Argentina

Agustin Esmoris / Flying Steamerduck (Tachyeres patachonicus) stretching, San Carlos de Bariloche, Argentina

Agustin Esmoris / Flying Steamerduck (Tachyeres patachonicus), San Carlos de Bariloche, Argentina

Agustin Esmoris / Chubut Steamerduck (Tachyeres leucocephalus) female and male, Argentina

Agustin Esmoris / Flying Steamerduck (Tachyeres patachonicus) in territorial display, San Carlos de Bariloche, Argentina

Agustin Esmoris / Chubut Steamerduck (Tachyeres leucocephalus) pair with female calling, Argentina

Joel Sartore / Photo Ark / Flying steamer duck (Tachyeres patachonicus) head portrait, Sylvan Heights Bird Park. Captive, occurs in southern South America.

Joel Sartore / Photo Ark / Flying steamer duck (Tachyeres patachonicus) portrait, Sylvan Heights Bird Park. Captive, occurs in southern South America.

Joel Sartore / Photo Ark / Flying steamer duck (Tachyeres patachonicus) walking, portrait, Sylvan Heights Bird Park. Captive, occurs in southern South America.

Joel Sartore / Photo Ark / Flying steamer duck (Tachyeres patachonicus) resting, portrait, Sylvan Heights Bird Park. Captive, occurs in southern South America.

Tui De Roy / Magellanic flightless steamer duck (Tachyeres pteneres), territorial pair on foreshore, Beagle Channel, Patagonia, Argentina

Philippe Clement / Fuegian steamer duck / Magellanic flightless steamer duck (Tachyeres pteneres) flightless duck from South America. Captive

Philippe Clement / Fuegian steamer duck / Magellanic flightless steamer duck (Tachyeres pteneres) swimming. South America. Captive