Photo of a Rockhopper Penquin taken at Sea Lion Island, South Atlantic.
The Rockhopper Penguin is listed as Endangered on the IUCN Red list of Threatened Species. At a number of sites (Falkland and Campbell Islands, Tristan da Cunha and the Antipodes) the populations have declined substantially. At Campbell Island the decline has been in tbe order of 94%. The speculated reason for these declines is rises in sea surface temperature (due to global warming) which has affected the prey stocks of rockhopper penguins.