
photo:
au.gov
Description:
Smallest of the crested penguins, the Rockhopper is black
above and white below. The most recognizable feature of
the Rockhopper Penguin is its yellow eyebrows that terminate
in a series of plumes that extend from the head, behind
its red eyes. The Rockhopper Penguin measures about two
feet in height and weighs up to eight pounds. Rockhoppers
are named for their habit of hopping and jumping from
rock to rock.
Diet:
Squid, krill, mollusks, octopus, and small fish.
Range:
The Rockhopper Penguin breeds in large colonies on many
sub-Antarctic islands such as Prince Edward Islands, the
Crozet Islands, the Kerguelen Islands, Heard Island, Macquarie
Island, New Zealand and Antipodes Islands, the Falkland
Islands and islands off of Argentina and Chile.
Nesting:
Rockhopper nests are simple scrapes in the ground lined
with grasses. The female lays two eggs, though only one
chick normally survives. The male and female take turns
guarding and incubating the eggs for period of about five
weeks. Incubation shifts last about ten days. The male
takes care of the chick when it hatches from the egg and
the female ventures to the sea to collect food for her
mate and new chick. After about four weeks, the young
penguin joins a creche (huddle for warmth and protection)
with other young penguins. In about six weeks, the young
penguins attain adult plumage and venture to the sea on
their own.
Status:
Although the Rockhopper Penguin is still numerous, some
population declines have been noted. There are currently
about three million breeding pairs.