Plain Wren Duets Spec Graph (IMAGE) University of Miami Caption The spectrogram corresponds to plain wrens duet, with the contribution of the female and the male highlighted in different colors. Credit Karla D. Rivera-Càceres, University of Miami College of Arts & Sciences Department of Biology 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.