Regent honeyeater: Rare Australian bird 'has forgotten its song' 17 Mar 202117 March 2021 Last updated at 09:50 Listen to the sound of the regent honeyeaters' song A rare bird in Australia has become so threatened that some young ones are failing to learn how to sing their own song. Scientists say the regent honeyeater, which once had a large population, is now critically endangered with only 300 left in the wild. "They don't get the chance to hang around with other honeyeaters and learn what they're supposed to sound like," explained Dr Ross Crates, a member of the Difficult Bird Research Group at the Australian National University.