979-7139 - 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.
979-9380 - Adult macaroni penguins (Eudyptes chrysolophus) porpoising for speed while traveling to their breeding colony on South Georgia, Southern Ocean
979-3867 - Sunrise on the king penguin (Aptenodytes patagonicus) breeding and nesting colonies at St. Andrews Bay on South Georgia Island, Southern Ocean.
979-7187 - Black-browed albatross (Thalassarche melanophrys) chick on nest at breeding colony on New Island in the Falkland Islands, Southern Atlantic Ocean
979-9121 - Adult southern rockhopper penguin (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island in the Falkland Islands, South Atlantic Ocean
979-1671 - An adult chinstrap penguin (Pygoscelis antarctica) returning to the nest at a breeding colony in a snowstorm on Half Moon Island near Livingston Island, South Shetland Islands
979-2854 - Sunset over a magnificent frigatebird (Fregata magnificens) breeding colony on Isla Magdalena, Bahia de Magdalena, Baja California Sur, Mexico.
979-1674 - Chinstrap penguin (Pygoscelis antarctica) colony in a snowstorm on Half Moon Island near Livingston Island in the South Shetland Islands near the Antarctic Peninsula. There are an estimated 2 million plus breeding pairs of chinstrap penguins in the Antarctic peninsula region alone, perhaps as many as 7.5 million breeding pairs in all of Antarctica.
979-1673 - Adult chinstrap penguin (Pygoscelis antarctica) braying in a breeding colony in a snowstorm on Half Moon Island near Livingston Island in the South Shetland Islands near the Antarctic Peninsula
979-9381 - Adult macaroni penguins (Eudyptes chrysolophus) porpoising for speed while traveling to their breeding colony on South Georgia, Southern Ocean
979-3868 - Sunrise on the king penguin (Aptenodytes patagonicus) breeding and nesting colonies at St. Andrews Bay on South Georgia Island, Southern Ocean.
979-9123 - Adult southern rockhopper penguin (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island in the Falkland Islands, South Atlantic Ocean
979-1675 - Chinstrap penguin (Pygoscelis antarctica) buried in snow at a breeding colony in a snowstorm on Half Moon Island, South Shetland Islands near the Antarctic Peninsula
979-3869 - Sunrise on the king penguin (Aptenodytes patagonicus) breeding and nesting colonies at St. Andrews Bay on South Georgia Island, Southern Ocean.
979-7184 - Adult Black-browed albatross (Thalassarche melanophrys) taking flight at breeding colony on New Island in the Falkland Islands, Southern Atlantic Ocean
979-9374 - King penguins (Aptenodytes patagonicus) on the beach at breeding and nesting colony at Salisbury Plains in the Bay of Isles, South Georgia, Southern Ocean.
979-7186 - Black-browed albatross (Thalassarche melanophrys) chick on nest at breeding colony on New Island in the Falkland Islands, Southern Atlantic Ocean
979-3870 - Sunrise on the king penguin (Aptenodytes patagonicus) breeding and nesting colonies at St. Andrews Bay on South Georgia Island, Southern Ocean.
979-5699 - Adult waved albatross (Diomedea irrorata) courtship display at breeding colony on Espanola Island in the Galapagos Island Archipelago, Ecuador. Pacific Ocean
979-4251 - King penguins (Aptenodytes patagonicus) among breeding and nesting colonies of both gentoo and chinstrap penguins on Barrentos Island in the Aitcho Island Group, South Shetland Islands, Antarctica.
979-9095 - King penguin (Aptenodytes patagonicus) breeding and nesting colony at Salisbury Plains, Bay of Isles on South Georgia Island, Southern Ocean.
979-4783 - Adult Imperial Shag (Phalacrocorax (atriceps) from breeding colony on offshore islets in the Beagle Channel, coastal southern Chile and Argentina
979-9248 - Adult rockhopper penguin (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island in the Falkland Islands, South Atlantic Ocean
979-3860 - Sunrise on the king penguin (Aptenodytes patagonicus) breeding and nesting colonies at St. Andrews Bay on South Georgia Island, Southern Ocean.
979-7182 - Adult Black-browed albatross (Thalassarche melanophrys) feeding and preening chick at breeding colony on New Island in the Falkland Islands, Southern Atlantic Ocean
979-3866 - Sunrise on the king penguin (Aptenodytes patagonicus) breeding and nesting colonies at St. Andrews Bay on South Georgia Island, Southern Ocean.
979-3857 - Sunrise on the king penguin (Aptenodytes patagonicus) breeding and nesting colonies at St. Andrews Bay on South Georgia Island, Southern Ocean.
979-9094 - Avian pox outbreak at the king penguin (Aptenodytes patagonicus) breeding and nesting colony at Salisbury Plains, Bay of Isles on South Georgia Island, Southern Ocean.
979-1566 - Adult gentoo penguin (Pygoscelis papua) on two eggs at breeding colony on Barrentos ISland in the Aitcho Island Group, South Shetland Islands, Antarctica
979-5697 - Adult waved albatross (Diomedea irrorata) courtship display at breeding colony on Espanola Island in the Galapagos Island Archipelago, Ecuador. Pacific Ocean