Pimm Ocampo Birds (1 of 3) (IMAGE) Duke University Caption The velvet-purple coronet is classified by IUCN as a species of least concern, but a Duke-led study finds it should be classified as vulnerable. Credit Natalia Ocampo-Peñuela Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.