"Adelie Penguin (Pygoscelis adeliae), carrying a stone in its beak for building a nest, Paulet Island, Antarctic Peninsula, Antarctica"

"Gentoo Penguin (Pygoscelis papua) feeding young, Brown Bluff, Antarctic Peninsula, Antarctica"

"Gentoo Penguin (Pygoscelis papua) feeding young, Brown Bluff, Antarctic Peninsula, Antarctica"

"Chinstrap Penguin (Pygoscelis antarcticus), chick, Hannah Point, Livingston Island, Antarctica"

"Adelie Penguins (Pygoscelis adeliae) standing on an ice floe, Bransfield Strait, northern Antarctic Peninsula, Antarctica"

"Chinstrap Penguin (Pygoscelis antarcticus) feeding a chick, Hannah Point, Livingston Iceland, Antarctica"

"Gentoo Penguin (Pygoscelis papua) chick in the nest, Hannah Point, Livingston Island, South Shetland Islands, Antarctica"

"Gentoo Penguin (Pygoscelis papua) and chick at the nest, Hannah Point, Livingston Island, South Shetland Islands, Antarctica"

"Gentoo Penguin (Pygoscelis papua) and chick at the nest, Hannah Point, Livingston Island, South Shetland Islands, Antarctica"

"Gentoo Penguin (Pygoscelis papua) and chick at the nest, Hannah Point, Livingston Island, South Shetland Islands, Antarctica"

"Gentoo Penguin (Pygoscelis papua) and chick at the nest, Hannah Point, Livingston Island, South Shetland Islands, Antarctica"

"Gentoo Penguin (Pygoscelis papua) and chick at the nest, Hannah Point, Livingston Island, South Shetland Islands, Antarctica"

"Adelie Penguins (Pygoscelis adeliae) with a sleeping chick, Petermann Island, Antarctic Peninsula, Antarctica"

"Adelie Penguin (Pygoscelis adeliae), walking in the snow, Devil Island, Antarctica"

"Adelie Penguin (Pygoscelis adeliae), adult walking in the snow, Devil Island, Antarctica"

"Adelie Penguin (Pygoscelis adeliae), adult walking in the snow, Half Moon Island, Antarctica"

"Adelie Penguins (Pygoscelis adeliae), parent birds with chicks standing in front of mountain scenery, Petermann Island, Antarctic Peninsula, Antarctica"

"Adelie Penguins (Pygoscelis adeliae), couple walking in the snow, Devil Island, Antarctica"

Adelie penguin (Pygoscelis adeliae) standing on an iceberg, Antarctic Sound, Antarctic Peninsula, Antarctica

"Three Adelie Penguins (Pygoscelis adeliae), adults walking in the snow, Devil Island, Antarctica"

"Three Adelie Penguins (Pygoscelis adeliae), adults walking in the snow, Devil Island, Antarctica"

"Colony of Adelie Penguins (Pygoscelis adeliae), adult birds and fledglings during the juvenile moult, in front of a backdrop of mountains and glaciers, Petermann Island, Antarctic Peninsula, Antarctica"

"Gentoo Penguins (Pygoscelis papua), adult bird feeding chick, Barrientos Island, Aitcho Islands, Sudliche Shetlandinseln, Antarctica"

"Adelie Penguins (Pygoscelis adeliae), adult couple standing in the snow, Brown Bluff, Antarctica"

"Adelie Penguin (Pygoscelis adeliae) feeding a chick, Paulet Island, Antarctic Peninsula, Antarctica"