Wind turbines lining the Altamont Pass near Livermore, Calif., generate electricity on 

Wind turbines lining the Altamont Pass near Livermore, Calif., generate electricity on Sunday, May 12, 2013. It's the not-so-green secret of the nation's wind-energy boom: Spinning turbines are killing thousands of federally protected birds, including eagles, each year. (AP Photo/Noah Berger)
Associated Press
Wind turbines lining the Altamont Pass near Livermore, Calif., generate electricity on Sunday, May 12, 2013. It's the not-so-green secret of the nation's wind-energy boom: Spinning turbines are killing thousands of federally protected birds, including eagles, each year. (AP Photo/Noah Berger)
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