King Penguin

The King Penguin (Aptenodytes patagonicus) is the second largest species of penguin, smaller but similar appearance to the Emperor Penguin. 
King penguins mainly eat Fish, Squid and Krill. King Penguins repeatedly dive to over 100 metres. Predators of the king penguin include giant petrels, skuas, the snowy sheathbill, the leopard seal and the orca.
King Penguins breed in Antarctica, South Georgia, and other islands of the region. King penguins also live on Macquarie Island in the Southern Ocean.
Appearance
The King Penguin appears very similar to the larger emperor penguin, with a broad cheek patch contrasting with surrounding dark feathers and yellow-orange plumage at the top of the chest. However, the cheek patch of the adult king penguin is a solid bright orange whereas that of the emperor penguin is yellow and white, and the upper chest tends to be more orange and less yellowish in the king species. Both have colourful markings along the side of their lower mandible, but these tend towards pink in emperor penguin and orange in king penguin. Emperor and king penguins do not inhabit the same areas in the wild,but the two can be distinguished from one another by the king's longer bill, larger flippers and sleeker body. The juvenile king penguin with its long bill and heavy dark brown down is different in appearance from the grey emperor chick with its black and white mask. the king chick resembles the adult, but is somewhat less colourful.
Behaviour
The king penguin dives to depths of 100–300 meters (350–1000 feet), spending around five minutes submerged, during daylight hours, and less than 30 metres (98 ft) at night. 
The king penguin's swimming speed is 6.5–10 km/h (4–6 mph). On land, the king penguin alternates between walking with a wobbling gait and tobogganing—sliding over the ice on its belly, propelled by its feet and wing-like flippers. Like all penguins, it is flightless.
Diet
King penguins eat various species of small fish, squid, and krill. Fish constitute roughly 80% of their diet.
Predators
The King Penguin's predators include Other Seabirds and Mammals.
Giant Petrels take many chicks and some eggs. They will also kill adult king penguins, but very likely mostly sick or injured birds.
Skuas take smaller chicks and eggs. Large numbers of chicks and eggs are taken in areas where skua nest close to penguin colonies.
The Snowy Sheathbill and Kelp Gull scavenge for dead chicks and eggs.
The Leopard Seal takes adult birds and fledglings at sea.
Orcas also hunt King Penguins
Male Antarctic fur seals on Marion Island have also been observed chasing, killing and eating king penguins on the beach.