Gentoo penguin feeding large chick, Gourdin Island, Antarctic Peninsula, Antarctica, Polar Regions

Adult king penguins and oakum boy chicks (Aptenodytes patagonicus), at Gold Harbor, South Georgia Island, Polar Regions

Curious gentoo penguin chick (Pygoscelis papua), Jougla Point, Wiencke Island, Antarctica, Polar Regions

King penguin (Aptenodytes patagonica) adult and first season chick, Salisbury Plain, South Georgia, Polar Regions

Adult gentoo penguin (Pygoscelis papua) feeding chick at Jougla Point, Wiencke Island, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua) feeding its chick, Volunteer Point, Falkland Islands, South America

A gentoo penguin (Pygoscelis papua) chick with its parent on Barrientos Island, Aitcho Island Group, Antarctica, Polar Regions

Adult gentoo penguin (Pygoscelis papua) on nest with chicks at Gold Harbor, South Georgia Island, Polar Regions

Gentoo penguin chick (Pygoscelis papua) molting at the breeding colony on Cuverville Island, Antarctica, Polar Regions

Adult gentoo penguin (Pygoscelis papua), amongst king penguins in Gold Harbor, South Georgia, Polar Regions

Gentoo penguin chicks (Pygoscelis papua) at Argentine rescue hut, Mikkelsen Harbor, Trinity Island, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua) with chick and egg, Antarctica, Polar Regions

Gentoo penguin feeding large chick, Gourdin Island, Antarctic Peninsula, Antarctica, Polar Regions

Adult gentoo penguin (Pygoscelis papua), feeding its chick on Prion Island, Bay of Isles, South Georgia, Polar Regions

Gentoo penguin (Pygoscelis papua) with chick and egg, Antarctica, Polar Regions

King penguin chick, Salisbury Plain, South Georgia, South Atlantic

King penguin chick, Salisbury Plain, South Georgia, South Atlantic

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chicks, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chicks (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chicks (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

King penguin chicks and bird watching tourists on Salisbury Plain, South Georgia Island, Antarctica

Gentoo penguin feeding chick, Neko Harbour, Antarctic Peninsula, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Colony of Emperor penguins (Aptenodytes forsteri) and chicks, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

An adult King penguin (Aptenodytes patagonicus) feeding its chick, Volunteer Point, East Falkland, Falkland Islands, South Atlantic, South America

Emperor penguins (Aptenodytes forsteri) and chicks, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Gentoo penguin feeding chick, Neko Harbour, Antarctic Peninsula, Antarctica, Polar Regions

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Brown feathered king penguin chick, St. Andrews Bay, South Georgia, South Atlantic

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua) adult and chick, Ronge Island, Antarctic Peninsula, Antarctica, Polar Regions

King penguins, Salisbury Plain, South Georgia, South Atlantic

King penguin chick, Salisbury Plain, South Georgia, South Atlantic

Gentoo penguin (Pygoscelis papua) adult with chick begging for food, Ronge Island, Antarctic Peninsula, Antarctica, Polar Regions

King penguins, Salisbury Plain, South Georgia, South Atlantic

Gentoo penguin adult and chicks (Pygoscelis papua), Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Adult chinstrap penguin (Pygoscelis antarcticus) feeding chick, Neko Harbour, Antarctic Peninsula, Antarctica, Polar Regions

Gentoo penguin adult (Pygoscelis papua) feeding chicks, Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Adult Gentoo penguin (Pygoscelis papua) and chicks on nest, Neko Harbour, Antarctic Peninsula, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua) adult feeding chicks, Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Gentoo penguin adult and chicks (Pygoscelis papua), Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Adult Gentoo penguin (Pygoscelis papua) and chicks on nest, Neko Harbour, Antarctic Peninsula, Antarctica, Polar Regions

Adult Gentoo penguin (Pygoscelis papua) and chick on nest, with mountains and glaciers in background, Antarctic Peninsula, Antarctica, Polar Regions

Gentoo penguin adult and chicks (Pygoscelis papua) in colony, Hannah Point, South Shetland Islands, Antarctica, Polar Regions

A Black Browed Albatross (Thalassarche melanophris) chick sitting on a nest in a mixed nesting colony of albatross's and Rockhopper Penguins

Chinstrap Penguin (Pygoscelis antarcticus) adult and chick, Hannah Point, South Shetland Islands, Antarctica, Polar Regions

A Black Browed Albatross (Thalassarche melanophris) chick sitting on a nest in a mixed nesting colony of albatross's and Rockhopper Penguins

King Penguins (Aptenodytes patagonicus)

King penguin (Aptenodytes patagonicus), chick looking at tourist, on beach, Gold Harbour, South Georgia, Polar Regions

Gentoo penguin chick (Pygoscelis papua), Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Emperor penguin (Aptenodytes forsteri), with chick being brooded, Weddell Sea, Antarctica, Polar Regions

Gentoo penguin. Pygoscelis papua. Royal bay, south georgia, antarctica

Emperor penguins (Aptenodytes forsteri), chick on parent's feet begging for food, Weddell Sea, Antarctica, Polar Regions

Gentoo penguin. Pygoscelis papua. Chick. Wiencke island. Antarctica

Family of emperor penguins (Aptenodytes forsteri), Weddell Sea, Antarctica, Polar Regions

Family of emperor penguins (Aptenodytes forsteri), Weddell Sea, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus), chick on beach, Gold Harbour, South Georgia, South America

Emperor penguin (Aptenodytes forsteri), with chick, Weddell Sea, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua), with chicks, silhouetted at sunset, Petermann Island, Antarctica, Polar Regions

Family of emperor penguins (Aptenodytes forsteri), Weddell Sea, Antarctica, Polar Regions

Molting gentoo penguin (Pygoscelis papua) feather detail in Antarctica

A parent and chick Adelie penguin (Pygoscelis adeliae) on Paulet Island on the Northeast side of the Antarctic Peninsula.

Adelie penguin chick (Pygoscelis adeliae) fledging its downy feathers for the adult feathers underneath on Devil Island, Antarctica.

Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean

A leucistic Adelie penguin (Pygoscelis adeliae) adult feeding its "normal" colored chicks on Devil Island near the Antarctic Peninsula

Gentoo penguins (Pygoscelis papua) in Antarctica

Gentoo penguin (Pygoscelis papua) parent feeding downy chick on Pleneau Island, near the Antarctic Peninsula.

Adult gentoo penguin (Pygoscelis papua) trying to avoid hungry chick in Antarctica

Chinstrap penguin (Pygoscelis antarctica) chick head detail at colony on Useful Island near the Antarctic Peninsula. There are an estimated 2 million breeding pairs of chinstrap penguins in the Antarctic peninsula region alone, perhaps as many as 7.5 million breeding pairs in all of Antarctica. Their name derives from the narrow black band under their heads which makes it appear as if they are wearing black helmets, making them one of the most easily identified types of penguin. Other names for them are "Ringed Penguins", "Bearded Penguins", and "Stonecracker Penguins" due to their harsh call. They grow to 68 cm (27 in). The average adult weight of a Chinstrap Penguin is 4.5 kg (10 lbs). Weight can range from 3 to 6 kg (6.6-13.2 lbs), with males being slightly larger and weight varying based on where the penguin is in the breeding cycle. Their diet consists of krill, shrimp, and fish. On land they build circular nests from stones, and lay two eggs, which are incubated by both the male and the female for shifts of five to ten days. They can also breed on icebergs, though they prefer non-icy conditions. The chicks hatch after about 35 days, and have fluffy gray backs and white fronts. The chicks stay in the nest for 20?30 days before they go to join a creche. At around 50?60 days old, they moult, gaining their adult plumage and go to sea. The Chinstrap Penguin was first described by German naturalist Forster in 1781. Its specific epithet was often seen as antarctica, however a 2002 review determined the genus Pygoscelis was masculine, and hence the correct binomial name is Pygoscelis antarcticus.

Gentoo penguin (Pygoscelis papua) parent with downy chick on Petermann Island, near the Antarctic Peninsula.

The Magellanic Penguin (Spheniscus magellanicus), Argentina, South America

The Magellanic Penguin (Spheniscus magellanicus), Argentina

Chinstrap penguin (Pygoscelis antarctica) chick, Hannah Point, Antarctica, Southern Ocean.

Two Adélie Penguin (Pygoscelis adeliae) chicks enjoying childhood guarded by one of their parents. Petermann Island, Antarctica

King Penguin (Aptenodytes Patagonicus) protecting its chick. Sandy Bay, Macquarie Island, Subantarctic Australia.

Adult Chinstrap Penguin (Pygoscelis antarcticus) with almost grown up chick. Livingston Island, Antarctica

Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean

Adelie penguin (Pygoscelis adeliae) chick, fat after being fed, Paulet Island, Antarctica, Southern Ocean

Adelie penguin (Pygoscelis adeliae) near the Antarctic Peninsula, Antarctica.

Adelie penguin (Pygoscelis adeliae) adult feeding chick, fat after being fed, Paulet Island, Antarctica, Southern Ocean

Gentoo penguin adult (Pygoscelis papua) on hatching egg in Antarctica

King Penguin (Aptenodytes patagonicus) parent with hungry chick on South Georgia Island, southern Atlantic Ocean.