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. |