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.

Klein & Hubert / Chinstrap penguins (Pygoscelis antarcticus) two walking on snowy slope, Antarctica

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

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

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

Klein & Hubert / Two Chinstrap penguins (Pygoscelis antarctica) walking in snow, Antarctic Peninsula.

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) walking, Antarctica

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) walking with high mountains in background, Antarctica

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) with sea, in sunset light in the background, Antarctica

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) climbing to colony and mountain summit in background, Antarctica

Klein & Hubert / Chinstrap penguins (Pygoscelis antarcticus) climbing to colony and mountain in background, Antarctica

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) climbing to colony, Antarctica

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) walking with full belly and iceberg in background, Antarctica

Klein & Hubert / Chinstrap penguins (Pygoscelis antarcticus) climbing to colony and mountain in background, Antarctica

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) walking with full belly at sunset, Antarctica

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

Michael Pitts / Gentoo penguins (Pygoscelis papua) calling and defending their eggs from Southern Skua (Stercorarius antarcticus) hunting for unattended eggs or chicks, Sea Lion island, The Falklands, South Atlantic.

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.

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

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.

David Tipling / Falkland / Brown skua (Stercorarius antarcticus) in flight carrying a stolen Gentoo penguin egg (Pygoscelis papua) Sea Lion Island, Falklands

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

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

Doug Gimesy / Two Chinstrap penguins (Pygoscelis antarcticus), inspecting a potential nesting site. Halfmoon Island, Antarctic peninsula, Antarctica.

Doug Gimesy / Chinstrap penguin (Pygoscelis antarcticus) climbing over a rocky outcrop, just come ashore to look for potential nesting sites. Halfmoon Island, Antarctic peninsula, Antarctica.

Doug Gimesy / Chinstrap penguin (Pygoscelis antarcticus), walking on a hill towards a nesting site. Halfmoon Island, Antarctic peninsula, Antarctica.

Ashley Cooper / Chinstrap penguin (Pygoscelis antarcticus) group walking across snow, between red flags marking a route for tourists from expedition ship to follow. Palava Point, Two Hummock Island, Palmer Archipelag...

Ashley Cooper / Tourists from expedition cruise ship amongst Chinstrap penguin (Pygoscelis antarcticus) colony. Breeding bird numbers have rapidly declined from 100,000 to 20,000 in the past thirty years. Baily Head,...

Ashley Cooper / Tourists from expedition cruise ship amongst Chinstrap penguin (Pygoscelis antarcticus) colony. Breeding bird numbers have rapidly declined from 100,000 to 20,000 in the past thirty years. Baily Head,...

Ashley Cooper / Chinstrap penguin (Pygoscelis antarcticus) on glacier. Fort Point, Greenwich Island, South Shetland Islands, Antarctica. January 2020.

Jeff Foott / Chinstrap penguin (Pygoscelis antarctica), Ronge Island, Antarctica. Medium repro only

Jeff Foott / Chinstrap penguin (Pygoscelis antarctica) displaying, Aitcho Islands, South Shetland Islands, Antarctica.

Jeff Foott / Chinstrap Penguins (Pygoscelis antarctica). Ronge Island. Antarctica.

Jeff Foott / Chinstrap Penguin (Pygoscelis antarctica). Ronge Island. Antarctica.

Jeff Foott / Chinstrap Penguin (Pygoscelis antarctica), Ronge Island, Antarctica.

Jeff Foott / Chinstrap Penguin (Pygoscelis antarctica), Ronge Island, Antarctica.

Jeff Foott / Chinstrap Penguin (Pygoscelis antarctica) parent and chick. Ronge Island. Antarctica.

Jeff Vanuga / Chinstrap penguins (Pygoscelis antarcticus) colony on Petermann Island, Antarctica.

Jeff Vanuga / Chinstrap penguins (Pygoscelis antarcticus) on Orne Island building nests of rocks for nesting mate. Antarctica.

Jeff Vanuga / Chinstrap penguin (Pygoscelis antarcticus) Antarctica.

Jeff Vanuga / Chinstrap penguins (Pygoscelis antarcticus) coming ashore on Half Moon Bay, Antarctica.

Jeff Vanuga / Chinstrap penguins (Pygoscelis antarcticus) coming ashore in line, Half Moon Bay, Antarctica.

Jeff Vanuga / Chinstrap penguins (Pygoscelis antarcticus) coming ashore, walking in line, Half Moon Bay, Antarctica.

Fred Olivier / Scientists walking in between Adelie penguin (Pygoscelis adeliae) colonies in search of Antarctic Skua chicks (Stercorarius antarcticus) at Dumont d'Urville Station , Antarctica, January 2013