Chaffinch (IMAGE) Duke University Caption Songs of the European chaffinch lose their syntactical structure the further out the birds are found on the mid-Atlantic archipelago. Credit Robert Lachlan, Duke 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.