Vocal Mimicry of Yoko the Parrot (VIDEO) University of Pittsburgh This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption A video of Yoko the parrot, taken by researcher Christine Dahlin, that shows her vocal mimicry patterns. Credit Christine Dahlin Usage Restrictions Inform media contact of use and properly credit. 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.