This institute has been studying bird migration routes using radar for 40 years. “A special feature of the Birdscan device is its complete automation: when the density of a flock of birds exceeds a certain threshold, the wind turbine stops functioning, its blades stop,” he told swissinfo. ch ornithologist Felix Liechti.
“The negative impact of wind turbines on the life and migration of birds has been known for a long time and confirmed by numerous studies,” recalls Felix Lichti. “The construction of a wind turbine entails serious changes in the parameters of the habitat, and some species of birds and other animals directly feel all the negative consequences of these processes. The greatest danger, however, is the blades of wind turbines. They are a huge risk factor for both local birds that nest in the region and for migratory ones. “
Indeed, for example, according to the Spanish National Society of Ornithology (SEO / BirdLife), wind generators in this country kill 6 to 18 million birds and bats annually. In North America, tens of thousands of birds die in the blades of wind turbines, including the bald eagles (Haliaeetus leucocephalus), the symbol of the United States.