Warbling duet (AUDIO) University of Pittsburgh Your browser does not support the audio element. Caption The warbling duet of a Yellow-naped parrot Credit Professor Christine Dahlin/Pitt-Johnstown Usage Restrictions Use allowed with attribution License Original 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.
