Rockhopper Penguin
Rockhopper Penguins get their name from the rocky shores where they make their nests, and their habit of hopping from rock to rock to get around (instead of sliding like most penguin species). They are members of the genus of crested penguins, which are notable for their spiky yellow feathers on their heads.
Class: Aves
Order: Sphenisciformes
Family: Spheniscidae
Genus: Eudyptes
Species: E. chrysocome
Common Names: Rockhopper Penguin, Southern Rockhopper Penguin, Western Rockhopper Penguin, American Southern Rockhopper Penguin (E. c. chrysocome), Eastern Rockhopper Penguin, Indopacific Southern Rockhopper Penguin (E. c. filholi), Northern Rockhopper Penguin, Moseley’s Penguin, Moseley’s Rockhopper Penguin (E. c. moseleyi)
Rockhopper penguins usually live in rocky habitats on the shores of islands in the colder areas of the South Atlantic and Indian Oceans. They feed on krill, shrimp, crabs, lobsters, crayfish and other crustaceans. They may also eat fish and squid. Their diet can change with seasons and migration patterns. They can dive over 300 feet deep to find prey, and can hunt for several days at sea.
Since these penguins are so widespread, their breeding styles vary depending on where they live. Rockhoppers are found in the Antarctic, South Atlantic, and Indian Oceans. Rockhoppers in the northern part of their range begin their mating process earlier than southern penguins, by about two months. They usually lay two eggs per year, a few days apart from each other, and will return to the same nest year after year.
Rockhopper penguins are a small type of crested penguin. They feature the familiar penguin coloration of black and white feathers, with distinctive yellow crest feathers on their head. Their beaks are orange and their eyes are red. These birds are quite small, only measuring 20 inches or so when full grown.
It was long believed that there was only one type of rockhopper penguin, but scientists now recognize three different types: The Southern, Eastern and Northern rockhoppers. There is still some debate as to whether these penguins are distinctly different species, or subspecies of Eudyptes chrysocome. The main differences between the different types are their size and where they can be found, but all have the distinct features of the rockhopper, including the small size and yellow pointed crest feathers.
The Southern and Eastern rockhoppers are considered Vulnerable species, while the Northern rockhopper is considered Endangered. All rockhopper populations have been in decline, due to issues including a lower quantity and quality of food due to factors including climate change. Temperature changes in the ocean can change where prey can be found, and when rockhoppers are forced to travel further and further to ultimately find less food than before, it has an effect on the growth and health of penguin chicks.