Adelie Penguin (Pygoscelis adeliae) Sphenisciformes/ Spheniscidae
  Adelie penguins make nests piling up pebbles on the ground after ice and snow melt away. They lay 2 eggs in austral summer and the young leave the nest in the same season. Length: 70cm. Weight: 3.7-4.0kg. Feed on krill. Current Population: a minimum of 2,600,000 pairs, 10,000,000 chicks.
アデリーペンギン
 

Baby Adelies.
アデリーペンギンのヒナ
 
Source: Penguin-tachi no fushigina seikatsu. Masahiro Aoyagi. 1997.(Amazing Life of the Penguins;Japanese)
  Nankyokukai no kaichorui, kikyakurui, kujirarui. National Institute of Polar Research. 1983.
  (Sea Birds, Seals and Whales in the Southern Ocean ;Japanese)