Red-Tailed Hawk Sonogram (IMAGE) Michigan State University Caption This is the sonogram corresponding to a recording of a Red-tailed hawk made by Pamela Rasmussen. Credit Pamela Rasmussen/AVoCet 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.