A Subsong Sung by a Juvenile Zebra Finch (AUDIO) Hokkaido University Your browser does not support the audio element. Caption A subsong sung by a juvenile zebra finch. Credit Hokkaido University Usage Restrictions This audio is copyrighted and can be used for reporting this press release with an appropriate credit. 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.