Two herring gull chicks (IMAGE) University of Exeter Caption University of Exeter scientists studied herring gull chicks that had been rescued after falling off roofs Credit Emma Inzani Usage Restrictions This image may only be used with reports of this research License Original 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.