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King Penguins Facts
Aptenodytes patagonica
Estimated population: 2 to 3.2 million breeding pairs
Breeding Season: Starts in November or January, complex breeding system, early or late breeders - raise 2 chicks every 3 years.
Distribution: sub-Antarctic islands 46° to 55° South. Biggest colony is on South Georgia.
Height: 95cm - 3.1 ft
Weight: 15kg - 33lb
Facts: Antarctica Animals | Antarctic penguin fact file | Adélie penguins | Chinstrap penguins | Emperor penguins | Gentoo penguins | King penguins | Antarctic Animal Adaptations | Krill | How penguins survive the cold | Animals and the cold | Weddell Seals | Antarctic Fur Seal | Southern Elephant Seal | Other birds | Albatross | Snow Petrel | Whales
  Pictures: Emperor penguin pictures 2 3 4 | Buy: Buy Penguin pictures | Buy Emperor penguin pictures | Buy King penguin pictures
1/ What are King penguins like?

King Penguins in a Mating Ritual March, South Georgia Island
King Penguins in a Mating Ritual March, South Georgia
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King Penguins
King Penguins
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King penguins are one of the "classic" species that people think of when the think of penguins. Along with Adelie penguins, and Emperor penguins they have come to represent the whole group. They are very upright, dignified and handsome birds and when they emerge from the sea pristine and glistening there can be no cleaner or more elegant creature around.

King penguins are the second largest of the penguin species, on average they are around 15kg (33lb) and 95cm (3.1ft) high. Like many penguins, fully grown but unfledged chicks can appear to be larger than the adult birds, they were sometimes known as "woolly penguins" by the early explorers as the thick brown down of the juveniles looks like wool on sheep. Some even thought they were a separate species!

King penguins have colourful feathers around their necks and heads, with they are  the brightest of all the species of penguin and there is an estimated world population of 2 million breeding pairs (some estimates up to 3.2 million).

King penguins live on sub-Antarctic islands dotted around the continent from about 46° to 55° South where they form huge colonies on slopes with a nearby beach for access to the sea. King penguin colonies are occupied all the year round either by the chicks or the adults. Non-breeding birds may be found far from their home colony, particularly in the region of the Antarctic convergence and other places of upwelling where there are good concentrations of fish and squid to be found that they feed upon.

Major colonies are found on Crozet, Prince Edward Island, Kerguelen Island, Heard Island, South Georgia and Macquarie Island. Two subspecies are recognized:

Aptenodytes patagonica patagonicus
- The Falkland Islands and South Georgia.

Aptenodytes patagonica halli
 - Indian Ocean and South Pacific.

There are significant size differences between the different populations living on the different islands and there is evidence of genetic isolation (i.e. there is very little or no interbreeding) between colonies.

King Penguin Gigapans - panoramic pictures made up of multiple images from a digital camera stitched together, click the pictures to pop-up a new window and then explore the large images. These pictures used courtesy of Ella Derbyshire.

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St. Andrews Bay South Georgia - the largest King Penguin rookery in the world

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King penguins in Gold Harbour South Georgia

2/ What is unusual about the breeding cycle of King penguins?

King Penguin with Young Chick (Aptenodytes Patagonica) South Georgia
King Penguin with Young Chick South Georgia
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King Penguins (Aptenodytes Patagonicus) Walking, Falkland Islands
King Penguins Walking, Falkland Islands
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King Penguins at Waters Edge with Mountians
King Penguins at Waters Edge with Mountains
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King penguins don't make a nest, not even the perfunctory small pile of stones that other penguin species go for.

Instead, they lay only one egg at a time and carry it around on their feet covered with a flap of abdominal skin called the brood patch. It is looked after in this manner for the whole of the average 55 day incubation period, being shuffled from one parent to the other every 6-18 days. When relieved of the egg, that parent then goes off to sea on an extended food foraging trip.

Upon hatching, the chicks continue to be protected on the parents feet and the brood patch for another 30-40 days after which time, they are large enough to be able to regulate their temperature for themselves. It can still be a wait of many days, 3-14 between parents swapping duties, so the chick has to wait some considerable time between feeds.

King penguins live on Antarctic and sub-Antarctic islands rather than in the deep south. There are two distinct groups, "early breeders" and "late breeders". Early breeders lay eggs in November which hatch around mid-January, the chicks are reared and reach about 90% of adult weight by April when they are independent.

Late breeders lay and incubate their eggs from January until March. Parental visits become fewer and further between over the winter and the chicks are left to survive blizzards and severe conditions on their own. They huddle together in crèches and keep alive by depleting their fat reserves, the parents retuning to feed them about once every four to six weeks.

It can be as much as 3 months between feeds however and a 5 month wait has even been endured by a surviving chick. The chicks may lose up to 50% of their body weight in these intervals where they wait for a parent to return and feed them.

Though harsh, the winter conditions are no where near what the emperor penguins are enduring further south.

As food supplies improve in spring, so the parents are able to return more frequently and then by December, the last of the chicks have left to fend for themselves.

The parents will then moult, leave to go to sea for several weeks to fatten up again and then become the late breeders for that season.

Any parents that have lost their eggs or chicks during the winter will become that seasons early breeders.

In this unusual breeding cycle, king penguins usually only average one chick every two years or at most two in a three year cycle. The king penguin is restricted in range to ice free areas as a consequence of having to feed its chick through the winter.

3/ How do King penguins live their lives?

King Penguin Colony, St. Andrews Bay, South Georgia, Polar Regions
King Penguin Colony, St. Andrews Bay, South Georgia
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King penguins at Fortuna bay South Georgia
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King penguins leave the colony where they were born when they have fledged fully and so are able to swim in the sea and catch their own food. They cannot go into the water until they have lost their fluffy brown juvenile down that is an excellent insulator in the air, but a very poor insulator when wet. They will not return again to breed until they are at least 3 years old, when they will usually return to the site where they were born an continue to do so through-out their life which can last up to 30 years  in captivity.

Breeding is preceded by a moult where they lose their old feathers and have them replaced by new ones. Like the juveniles, adults cannot fish for food until they have a new fully intact and functioning set of feathers, so this moult period is one of starvation while living on food reserves.

Return to the breeding colony by the adults does not happen en masse as it does with some other penguin species, so King penguins will frequently change partners for each breeding cycle rather than pairing up with the same partner.

King penguins have been equipped with depth recorders and have been found to dive to at least 50m (160ft) in about half of their dives. They regularly dive deeper than this and have been recorded at up to 500m (1600ft). Deep dives tend only to occur during the day time with only shallow dives being recorded at night which account for only a minority of fishing dives.

They hunt prey that produce light by bioluminescence which is presumably the way by which the penguins can see to fish at night.

In fact so useful are they in carrying depth recorders, that some king penguins have been used to carry depth / temperature sensors with them on dives to give scientists a 3-dimensional record of sea temperature at various depths in the Southern Ocean.

King penguins are subjected to tourist presence mainly in the Falkland Islands and also on South Georgia, the impact tourism is very low currently. Penguins in general are tolerant of tourists and are not alarmed by their presence as long as they do not enter the colony.

King penguins are currently not influenced by any fishery as they themselves are not taken and their prey is not taken commercially at the moment, so industrial fishing is not affecting their numbers.

Konrad Wothe - B-R-R-R-R-R-R!
18 in x 24 in
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