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The Adélie penguin lives on sea ice but needs ice-free land to breed. With a reduction in sea ice, populations of the Adélie penguin have dropped by 65% over the past 25 years in the Antarctic Peninsula. [39] Young Adélie penguins that have no experience in social interaction may react to false cues when the penguins gather to breed.
Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the penguin's range is provided. Ranges are based on the IOC World Bird List for that species unless otherwise noted ...
Sphenisciformes (from the Latin for "wedge-shaped") is the taxonomic order to which the penguins belong. BirdLife International has assessed 18 species. 16 (89% of total species) have had their population estimated: those missing are the king and little penguins , both of which have been assessed as being of least concern .
Penguins evolved their wing structure to become more efficient underwater at the cost of their efficiency in the air. [ 28 ] The only known species of flightless bird in which wings completely disappeared was the gigantic, herbivorous moa of New Zealand , hunted to extinction by humans by the 15th century.
Gentoo penguins can reach a length of 70 to 90 cm (28 to 35 in), [19] [20] making them the third-largest species of penguin after the emperor penguin and the king penguin. Males have a maximum weight around 8.5 kg (19 lb) just before moulting and a minimum weight of about 4.9 kg (11 lb) just before mating.
The Adélie penguin, or Pygoscelis adeliae, is a penguin species commonly found along the For flight-ready birds, these often involve complex dance moves and peacock-like displays of grandeur.
One of the main interests of the base is the study of wildlife, notably the emperor penguins. In the summer, the rocks near the base serve as a refuge for the Adélie penguin, which comes here to reproduce. Skua, snow petrel, giant petrel, Cape petrel also spend the summer near the base. In the winter, only emperor penguins stay to
Adélie Cove is a 186-ha tract of ice-free land on the coast of Terra Nova Bay in Victoria Land, Antarctica. It has been identified as an Important Bird Area by BirdLife International because it supports populations of seabirds , notably a breeding colony of about 11,000 pairs of Adélie penguins .