Study estimates a million birds were lost on two key islands 
Lovelace, the rockhopper penguin that answers life’s questions in the animated film Happy Feet, probably would be just as stumped as the researchers who reported Friday that the population of his northern relatives has declined by 90 percent over the last 50 years. The population of northern rockhopper penguins once reached into the millions, but now the largest colonies are estimated at between 32,000 to 65,000 pairs on Gough Island, and 40,000 to 50,000 pairs on Tristan da Cunha Island, according to a study in the journal Bird Conservation International. Those two South Atlantic islands, which are British overseas territories, account for more than 80 percent of the total species population. "Historically, we know that penguins were exploited by people, and that wild dogs and pigs probably had an impact on their numbers," Richard Cuthbert of the Royal Society for the Protection of Birds and lead author of the paper, said in a statement. "However, these factors cannot explain the staggering declines since the 1950s, when we have lost upwards of a million birds from Gough and Tristan." "The declines at Gough since the 1950s are equivalent to losing 100 birds every day for the last 50 years", he added. "With more than half the world’s penguins facing varying degrees of extinction, it is imperative that we establish the exact reason why the Northern Rockhopper Penguin is sliding towards oblivion," he said. "Understanding what’s driving the decline of this bird will help us understand more about other threatened species in the Southern Ocean."
Northern rockhopper penguins near extinction
