Canary Sonograms (IMAGE) Max-Planck-Gesellschaft Caption This is the sonogram of a tutor (above) and that of a juvenile at 12 months (below). The corresponding audio files are available to listen to below under related links. Credit Image: Max Planck Institute for Ornithology 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.