Bird Flight (IMAGE) Office of Naval Research Caption Obie the parrotlet. Office of Naval Research-sponsored researchers at Stanford University recently found a new way to precisely measure the vortices created by birds' wings during flight. The results shed greater light on how these creatures produce enough lift to fly -- and challenge the accuracy of three aerodynamics models long used to predict animal flight. Credit (Photo: Lentink Lab, Stanford 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.