Researchers at the University of Bristol and RMIT University in Australia have uncovered new insights into the secrets of hovering kestrels that could revolutionize the way delivery drones navigate gusty city air.
Using advanced motion capture technology typically used in blockbuster movies, scientists were able to closely observe how kestrels remain motionless in the air while hunting for prey. This research could potentially help engineers develop aircraft and fixed-wing drones that are better equipped to handle turbulence and high winds.
The study involved two Nankeen Kestrels, named Kevy and Jedda, who were observed in a wind tunnel at RMIT University. These small falcons, native to Australia, were fitted with reflective stickers to track their movements as they hovered in the wind tunnel.
One of the key findings of the study was the kestrels’ ability to keep their heads still while hunting, despite the buffeting air. Researchers believe that the birds’ skill in coping with turbulence lies in their ability to change the shape of their wings, a technique that could inspire new technology for planes and drones.
Dr. Abdulghani Mohamed, lead researcher at RMIT University, highlighted the importance of studying the kestrels’ unique wind-hovering flight behavior. He explained that the birds’ wing-morphing abilities could offer a more efficient way to achieve stable flight in fixed-wing aircraft.
The potential applications of this research are vast, particularly for drones operating in windy environments like cities. By incorporating wing-morphing technology inspired by kestrels, engineers could improve the stability and efficiency of drones used for tasks such as postal deliveries or search and inspection work.
Overall, the study of kestrels and other birds’ flight behaviors offers a new perspective for aircraft design and navigation in natural environments. By learning from nature, researchers hope to unlock innovative solutions for the challenges faced by modern aviation technology.
