Anna's Hummingbird (IMAGE) University of British Columbia Caption New research by University of British Columbia zoologists indicates high altitudes hamper Anna's Hummingbirds' ability to manoeuvre. Credit Robert Ewart, University of British Columbia 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.