Junco (IMAGE) Michigan State University Caption In a first-of-its-kind study, a Michigan State University researcher has demonstrated that birds communicate via scents, and that odor reliably predicts their reproductive success. Credit Nicole Gerlach 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.