Northern rockhopper penguin mice ("Mus musculus") have been introduced into their environment by human sea expeditions. The mice have proven to be invasive, and consume northern rockhopper eggs, as well as hunt their young. In order to preserve the birds, a culling of the mice is being considered. The northern rockhopper penguin is classified as endangered because of the decline in numbers over the last three generations (or 30 years). Population Trends by Year and Island On March 16, 2011, the Maltese-registered freighter MS "Oliva" ran aground on Nightingale Island, spilling tons of heavy crude into the ocean. The crew was rescued, but
Rockhopper Exploration Rockhopper Exploration Rockhopper Exploration PLC (LSE:RKH) is an oil and gas exploration company headquartered in Salisbury, Wiltshire, United Kingdom. It owns offshore exploration and production licences in the North Falkland Basin in the waters north of the Falkland Islands. Rockhopper is listed on the Alternative Investment Market of the London Stock Exchange. Rockhopper was founded in 2004 to explore for oil and gas in the Falkland Islands. It received a listing on the AIM market in 2005. On 16 April 2010, Rockhopper commenced drilling of its first exploration well, 14/10-B (subsequently renamed 14/10-2) on its Sea Lion prospect using the