Goshawk Flight Feather (IMAGE) Cell Press Caption This picture shows a the asymmetric vane and tapering main shaft of a single flight feather from a goshawk. Credit Hao Howard Wu and Wen Tau Juan Usage Restrictions Credit Required 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.