Flapping Before Flight (VIDEO) American Museum of Natural History This video is under embargo. Please login to access this video. Caption This x-ray reconstruction of moving morphology (XROMM) video shows Chukar partridges of a variety of ages as they flap their wings to help climb steep slopes -- a behavior scientists call wing-assisted incline running (WAIR). Credit © Ashley Heers/Brown University XROMM Facility Usage Restrictions Can be used with appropriate 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.