The swift parrot's distinctive call was recorded dozens of times in a patch of Tasmanian forest. Then the forest was logged

Scientists estimate the endangered bird's population has slumped to about 750. But the logging agency responsible for clearing its habitat said it acted lawfullySign up for climate and environment editor Adam Morton's free Clear Air newsletter hereThey are sounds from a section of forest that no longer exists. In December and January, scientists for the Bob Brown Foundation captured the call of the swift parrot, a critically endangered migratory species. The environment campaign group says it was recorded in an area marked for clear-felling in the Wielangta forest in Tasmania's south-east.The foundation's Dr Charley Gros said the vocal mark of the world's fastest parrot was unmistakable. "It's a tiny bird but has a very loud call," he said. "It's very sharp and quick and fast. You can't confuse it with something else." Continue reading...