Cockatoo (1 of 3) (IMAGE) University of Vienna Caption Experimental setup decision between stick tool and low quality food, bird in waiting position. Credit Copyright: Bene Croy Usage Restrictions the image may only be used with appropriate caption or credit. 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.