Stuttered zebra finch singing (AUDIO) Tufts University Your browser does not support the audio element. Caption A zebra finch song sequence with a four-repeat stutter at the end Credit Mimi Kao, Tufts University 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.