Description
& Characteristics:
King
penguins breed on seven sub-Antarctic island groups with large
populations on the Falkland Islands, Macquarie Islands, Heard
Island, Iles Crozet and Marion island. They are not considered
to be migratory. Despite their scientific name 'patagonica,'
there is no evidence that they ever lived in Patagonia. Kings
have been exploited in the past, but thankfully their numbers
have increased in several localities and their conservation
status now seems secure.
Distinctive
features of the King penguin include a silvery-grey back with
a blackish-brown head decorated with striking ear patches
of bright golden-orange feathers. They are similar in appearance
to the Emperor penguin
but can be identified by the orange coloring on their breasts,
more slender bodies and longer bills. As are most penguins,
males and females are monomorphic, meaning they are similar
in both size and appearance with behavioral clues providing
the best means of identification.
King penguins
feed by deep water pursuit-diving, using their flippers to
propel themselves to depths of several hundred feet. Dives
may last 15 minutes or more. Their diet includes small fish
and squid, krill, and plankton. At sea, the key predators
of King penguins are the Leopard
seals and Killer
whales who wait beneath the surface near the shore for
unsuspecting birds. Opportunistic shore
birds such as: skuas,
sheathbills
and Giant
petrels often raid the colonies on land to take eggs and
young birds when unattended by adults.
King
penguin colonies are established on beaches, valleys and glacial
moraines free of snow and ice; they prefer level ground near
the sea. Highly gregarious birds, breeding Kings prefer to
be in close proximity to each other. They generally avoid
full-scale fighting although unwanted visitors may be warned
off with a flipper slap or a peck. Immature and non-breeding
birds do not associate with the breeding pairs, rather they
disperse, traveling far from the breeding localities to hunt
for food.
Kings
are unique in that they have an unusually long breeding season.
At any one time chicks of various ages are present in the
colonies as eggs are laid anytime from November through April.
From courtship through hatching of the eggs to the fledging
of the chick may take 14 months or more making annual breeding
impossible. Like the Emperors, King penguins' eggs are incubated
on the adults' feet and not in nests. Both parents share in
the care of the egg which takes approximately five weeks to
hatch. Incubating birds are basically immobile although they
can shuffle along slowly to avoid lumbering Southern
Elephant seals which occasionally wander through the colonies.
Once hatched, the dark brown downy chicks fast for long periods
of time between meals while the adults are away feeding at
sea. Chicks are reared right through the winter (huddling
in 'creches' or nursery groups to keep warm) and only fledge
the following summer. Early
explorers erroneously thought King chicks to be a separate
species from the adults calling them 'Woolly penguins.'