The Fish and Wildlife Service, Department of the Interior, is fast tracking “kill permits” that allow operators of wind generators to kill a certain number of eagles each year without any penalty.
A proposed wind farm in Osage County, Oklahoma has put forth a plan to kill three eagles per year for 30 years.
SOURCE: http://en.wikipedia.org/wiki/Environmental_impact_of_wind_power#Birds
In 2009 a U.S. Fish and Wildlife Service (USFWS) scientist estimated that wind turbines kill 440,000 birds per year in the U.S., with future mortality expected to increase significantly as wind power generation expands by 2030 to levels about 12 times higher than 2009 levels.
This estimate was disputed by several organizations, with the USFWS later pointing out that it was only an ‘estimate’ by one of many scientists and was not officially supported by the agency.
By comparison approximately 80,000 birds are killed by aircraft in the U.S., and a 2013 report by scientists from the Smithsonian Conservation Biology Institute and the U.S. Fish and Wildlife Service estimated that cats kill as many as 3.7 billion birds yearly in the same country.
An earlier report by the American Bird Conservancy had estimated bird predation by U.S. cats at 500 million yearly.