Jackdaws (IMAGE) University of Exeter Caption Jackdaws are more likely to join a mob to drive off predators if lots of their fellow birds are up for the fight, new research shows. Credit Alan McCarthy Usage Restrictions This image may only be used with reports of this research 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.