By comparison, according to the Fish and Wildlife Service, half a million birds a year are killed by wind farms, sixty million birds a year by cars, and one hundred million by flying into windows. A federal judge finally threw out the case in 2012, saying a conviction would criminalize many everyday activities, including trimming and cutting trees, harvesting crops, driving a car, and owning a cat (estimated to be responsible for up to 3.7 billion bird deaths a year in the United States).5
