JOHANNESBURG, South Africa - “Monster mice” are eating much larger albatross chicks alive, threatening rare bird species on a remote South Atlantic island seen as the world’s most important seabird colony.
“Gough Island hosts an astonishing community of seabirds and this catastrophe could make many extinct within decades,” said Geoff Hilton, a senior research biologist with Britain’s Royal Society for the Protection of Birds.
The house mice — believed to have made their way to Gough decades ago on sealing and whaling ships — have evolved to about three times their normal size.
“We think there are about 700,000 mice, which have somehow learned to eat chicks alive,” he said in a statement.
“The albatross chicks weigh up to 10 kg (22 pounds) and ... the mice weigh just 35 grams; it is like a tabby cat attacking a hippopotamus,” Hilton said.
The rapacious rodents gnaw into the bodies of the defenseless and flightless chicks, leaving a gaping wound that leads to an agonizing death. Scientists say once one mouse attacks the blood seems to draw others to the feast.