Jordi Chias / Chinstrap penguin (Pygoscelis antarcticus) carcass after leopard seal attack, Antarctic Peninsula, Antarctica.

Jordi Chias / Chinstrap penguin (Pygoscelis antarcticus) with chicks, Antarctic Peninsula, Antarctica.

Frederique Olivier / Chinstrap penguin (Pygoscelis antarcticus) moving a feather in its nest, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguin (Pygoscelis antarcticus) adding a stick to its nest and fighting with a neighbouring pair, Aitcho Island, South Shetland Islands.

Frederique Olivier / Panning shot of a Chinstrap penguin (Pygoscelis antarcticus) breeding colony, Aitcho Island, South Shetland Islands.

Andy Rouse / Chinstrap penguin (Pygoscelis antarcticus) group on blue iceberg, Antarctica

Bryan and Cherry Alexander / Chinstrap penguins (Pygoscelis antarctica) on a blue iceberg, with Antarctic Prion (Pachyptila desolata) flying over. Antarctica

David Tipling / Chinstrap Penguins (Pygoscelis antarcticus) on blue iceberg, Antarctica

Mark Carwardine / Chinstrap Penguins (Pygoscelis antarcticus) standing on ice. South Shetland Islands, Antarctica, January. Book plate from Mark Carwardine's Ultimate Wildlife Experiences.

Bryan and Cherry Alexander / Chinstrap penguins (Pygoscelis antarcticus) and Snowy sheathbill (Chionis alba) on snowy rocks. Half Moon Island, South Shetland Islands, Antarctica, October.

Bryan and Cherry Alexander / Chinstrap penguins (Pygoscelis antarcticus) on snowy rocks. Half Moon Island, South Shetland Islands, Antarctica, October.

Nick Garbutt / Chin-strap Penguin (Pygoscelis antarcticus) displaying. Half-Moon Island, South Shetland Islands, Antarctica. February. (digitally stitched image)

Roy Mangersnes / Portrait of a Chinstrap Penguin (Pygoscelis antarcticus) in snowfall on Useful Island, Antarctica. November.

Konrad Wothe / Chinstrap Penguin (Pygoscelis antarctica) hopping over ice, South Sandwich Islands, Antarctica

Andy Rouse / Chinstrap penguin (Pygoscelis antarcticus) jumping out of water, Antarctic Peninsula (non-ex)

Edwin Giesbers / Silhouette of Chinstrap Penguin {Pygoscelis antarctica} calling at sunset, Antarctica

Edwin Giesbers / Chinstrap Penguin {Pygoscelis antarctica} face portrait, Antarctica

Edwin Giesbers / Two Chinstrap Penguins {Pygoscelis papua} beside water, Antarctica

Jan Vermeer / Chinstrap Penguin (Pygoscelis antarctica) pair courting, Southern Thule, South Sandwich Islands, Antarctica

Carol Walker / Chinstrap Penguin (Pygoscelis antarctica), adult sliding down ice. South Orkney Islands, Antarctica.

Carol Walker / Chinstrap Penguin (Pygoscelis antarctica), adult on ice, South Orkney Islands.

Chris Gomersall / Chinstrap penguin (Pygoscelis antarctica) on blue iceberg. South Orkney Isles, Antarctica.

Chris Gomersall / Chinstrap penguins (Pygoscelis antarctica) porpoising. Southern ocean off South Shetland Isles, Antarctica.

Chris Gomersall / Chinstrap penguin (Pygoscelis antarctica) on blue iceberg. South Orkney Isles, Antarctica.

Chris Gomersall / Chinstrap penguin (Pygoscelis antarctica) on blue iceberg. South Orkney Isles, Antarctica.

Kim Taylor / Chinstrap penguin {Pygoscelis antarctica} performing ecstatic display, Antarctica.

Hanne Jens Eriksen / Chinstrap penguin portrait {Pygoscelis antarctica} South Georgia

Eric Dietrich / Chinstrap Penguin (Pygoscelis antarctica) group riding iceberg, Weddell Sea, Antarctica

Konrad Wothe / Chinstrap Penguin (Pygoscelis antarctica), Antarctica

Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) parents with chick, Paradise Bay, Antarctica Peninsula, Antarctica

Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) bowing over twin chicks Nelson Island, South Shetland Islands, Antarctica

Pete Oxford / Chinstrap penguin - ecstatic display {Pygoscelis antarctica} South Sandwich Is

Pete Oxford / Chinstrap penguin portrait. Sandwich Islands.

Pete Oxford / Chinstrap penguin (Pygoscelis antarctica) in ice. South Sandwich Islands, Antarctica

Jordi Chias / Chinstrap penguin (Pygoscelis antarcticus) with chicks, Antarctic Peninsula, Antarctica.

Benjamin Olson / Chinstrap Penguin (Pygoscelis antarctica) on snow, Antarctica

Benjamin Olson / Chinstrap Penguin (Pygoscelis antarctica), Antarctica

Mike Potts / Chinstrap penguins (Pygoscelis antarcticus) adults feeding large fluffy chicks. Hydrurga Rocks, near Cuverville Island. Antarctic Peninsula.

Mike Potts / Chinstrap Penguins (Pygoscelis antarcticus) adults with large fluffy chicks. one picking up stones. Hydrurga Rocks. Near Cuverville Island. Antarctic Peninsula. January.

Mike Potts / Chinstrap penguins (Pygoscelis antarcticus) adults with large fluffy chicks. Hydrurga Rocks. Near Cuverville Island. Antarctic Peninsula. January.

Mike Potts / Chinstrap Penguins (Pygoscelis antarcticus) adults with large fluffy chicks. Hydrurga Rocks, near Cuverville Island. Antarctic Peninsula. January.

Mike Potts / Chinstrap penguins (Pygoscelis antarcticus) adults with large fluffy chicks. Hydrurga Rocks. Near Cuverville Island, Antarctic Peninsula.

Frederique Olivier / Panning shot of Chinstrap penguins (Pygoscelis antarcticus) displaying in colony, Aitcho Island, South Shetland Islands.

Frederique Olivier / View of a Chinstrap penguin (Pygoscelis antarcticus) colony, with a ship in the background, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguins (Pygoscelis antarcticus) resting in colony, Aitcho Island, South Shetland Islands.

Frederique Olivier / Pair of Chinstrap penguins (Pygoscelis antarcticus) mating in colony, disturbing other birds, Aitcho Island, South Shetland Islands.

Frederique Olivier / Close-up of a Chinstrap penguin (Pygoscelis antarcticus) preening, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguins (Pygoscelis antarcticus) sleeping in colony, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguins (Pygoscelis antarcticus) resting in colony, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguin (Pygoscelis antarcticus) digging snow from its nest site, shot pans to a displaying pair, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguin (Pygoscelis antarcticus) adding a stick to its nest and fighting with a neighbouring pair, Aitcho Island, South Shetland Islands.

Frederique Olivier / Pair of Chinstrap penguins (Pygoscelis antarcticus) mating, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguins (Pygoscelis antarcticus) interacting, Aitcho Island, South Shetland Islands.

Frederique Olivier / Chinstrap penguin (Pygoscelis antarcticus) colony, Aitcho Island, South Shetland Islands.

Frederique Olivier / Pair of Chinstrap penguins (Pygoscelis antarcticus) displaying, Aitcho Island, South Shetland Islands.

Sylvain Cordier / Chinstrap penguins (Pygoscelis antarcticus), mating, Half Moon Island, Antarctic Peninsula

Sylvain Cordier / Adelie penguins (Pygoscelis adeliae), pair mating, Half Moon Island, Antarctic Peninsula

Sylvain Cordier / Chinstrap penguin (Pygoscelis antarctica) jumping out of the water, Cooper Bay, South Georgia

Sylvain Cordier / Chinstrap penguin (Pygoscelis antarcticus) on nest with egg, Half Moon island, Antarctic Peninsula

Sylvain Cordier / Chinstrap penguin (Pygoscelis antarcticus), walking, Half Moon Island, Antarctic Peninsula

Sylvain Cordier / Chinstrap Penguin (Pygoscelis antarcticus) at nest with one egg, Half Moon island, Antarctic Peninsula

Rick Price / Chinstrap penguin (Pygoscelis antarctica)with muddy chest, Penguin Island, South Shetland Islands, Antarctica. November.

Inaki Relanzon / Chinstrap penguins (Pygoscelis antarcticus) calling, South Shetland Islands, Antarctica.

David Tipling / Chinstrap penguin (Pygoscelis antarcticus) swimming off coast of South Georgia, January

David Tipling / Chinstrap penguin (Pygoscelis antarcticus) swimming off coast of South Georgia, January

David Tipling / Chinstrap penguin (Pygoscelis antarcticus) swimming off coast of South Georgia, January

Chris & Monique Fallows / Iceberg with Chinstrap penguins (Pygoscelis antarctica) Antarctica, December 2015

Brent Stephenson / Chinstrap penguin (Pygoscelis antarcticus) colony on beach and slope up to their breeding colony, Deception Island, South Shetland Islands, Antarctica, January.

Brent Stephenson / Large numbers of chinstrap penguins (Pygoscelis antarcticus) gather on the beach below their breeding colony Deception Island, South Shetland Islands, Antarctica, January.

Brent Stephenson / Chinstrap penguins (Pygoscelis antarcticus) with chicks by the memorial sculpture bust of Captain Luis Alberto Pardo, Elephant Island, South Shetland Islands, South Atlantic, January.

Brent Stephenson / Chinstrap penguins (Pygoscelis antarcticus) resting on a large iceberg, South Orkney Islands, South Atlantic, January.

Brent Stephenson / Chinstrap penguin (Pygoscelis antarcticus) bathing in sea water, Coronation Island, South Orkney Islands, South Atlantic, January.

Bryan and Cherry Alexander / Chinstrap penguin (Pygoscelis antarctica) on rocks with snow covered rocks, Half Moon Island, South Shetland Islands, Antarctica.

Bryan and Cherry Alexander / Chinstrap penguins (Pygoscelis antarctica) on a blue iceberg, Antarctica

Jeff Vanuga / Chinstrap Penguins (Pygoscelis antarctica) at Half Moon bay, Antarctica.

Jeff Vanuga / Chinstrap Penguin (Pygoscelis antarctica) covered in dirt, Anarctica.

David Tipling / Chinstrap penguins (Pygoscelis antarcticus) gathered around basalt rock formation in order to breed, Half Moon Island, Antarctica, November

Jeff Vanuga / Chinstrap Penguin (Pygoscelis antarctica) portrait. Hydruga Rocks, Antarctica, November.

Mark Carwardine / Chinstrap penguin and tourists, Whalers Bay, Deception Is, South Shetland Is

Mark Carwardine / Chinstrap penguin feeding chick {Pygoscelis antarctica} Antarctica.

Mark Carwardine / Photographer with Chinstrap penguin {Pygoscelis antarctica} Antarctica.

Mark Carwardine / Chinstrap penguin {Pygoscelis antarctica} Antarctica.

Mark Carwardine / Chinstrap penguin colony {Pygoscelis antarctica} Antarctica.

Konrad Wothe / Chinstrap Penguin (Pygoscelis antarctica) pair with chicks, Antarctic Peninsula, Antarctica

Norbert Wu / Leopard Seal (Hydrurga leptonyx) with Chinstrap Penguin (Pygoscelis antarctica) prey, Palmer Station, Antarctic Peninsula, Antarctica

Kevin Schafer / Chinstrap Penguin (Pygoscelis antarctica) flapping snow off of itself while incubating egg after heavy snowfall, Antarctic Peninsula, Antarctica

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) rookery in late summer. Half Moon Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) chick being guarded by its parent. Half Moon Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) chick being guarded by its parent. Half Moon Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) calling from its nest at the rookery, closeup. Half Moon Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) calling from its nest at the rookery with flippers outstretched. Half Moon Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) calling from its nest at the rookery with flippers outstretched. Half Moon Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) chicks begging for food from its parent. Half Moon Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Chinstrap Penguin (Pygoscelis antarctica) chicks begging for food from its parent. Half Moon Island, Antarctic Peninsula, Antarctica, January.