To reduce the risk of such accidents, Blackwell and his team tested how geese respond to different optical signals on aircraft. They had a remote-controlled aircraft fly on a flock of fenced geese. At one point two lights flashed alternately on its bow, once it was unlit. In addition, the researchers also used a painted aircraft, which should represent a bird of prey.
In the experiment, the geese evaded the illuminated aircraft more than four seconds earlier than the other two. Therefore, the authors of the study now recommend that more research on the lighting of the machines is needed to give birds the opportunity to avoid aircraft in time. "This is just the first step. In addition to the lighting, we also want to know how to customize the color scheme of an aircraft so that it is easier for birds to see, says Blackwell. This work is exciting.
It is estimated that bird strikes cost the aviation industry about $ 1.2 billion each year. While the frequency of these accidents is increasing worldwide, they are becoming increasingly rare in Germany, according to the German Committee for the Prevention of Avian Insect Ailments (DAVVL). displayBradley F Blackwell (National Wildlife Research Center) et al: Journal of Applied Ecology, doi: 10.1111 / j.1365-2664.2012.02165.x © science.de - Sabine Kurz