It is estimated that rockhopper penguins have undergone a decline of more than 30% in their total population size over the past 30 years. For this reason, they are classified as vulnerable by the IUCN. If the decline continues, they may be uplisted to endangered in the near future. Threats to rockhopper penguin populations include commercial fishing, which reduces the amount of available prey, and oil spills.
CITES: no special status
IUCN Red List of Threatened Species: vulnerable
- Bingham, M. 2002. The decline of Falkland Islands penguins in the presence of a commercial fishing industry. Revista Chilena de Historia Natural, 75(4): 805-818.
- Ryan, P., J. Cooper. 1991. Rockhopper penguins and other marine life threatened by drift net fisheries at Tristan da Cunha, South Atlantic Ocean. Oryx, 25(2): 76-79.
- BirdLife International, 2004. "Eudyptes chrysocome" (On-line). 2004 IUCN Red List of Threatened Species. Accessed November 14, 2005 at www.redlist.org.