From a sensationalist anti-green article, here are some facts about how first generation wind turbines are being replaced with safer ones.
http://articles.latimes.com/2011/jun/06/local/la-me-adv-wind-eagles-20110606/2
The U.S. Fish and Wildlife Service authorizes limited incidental mortality and disturbance of eagles at wind facilities, provided the operators take measures to mitigate the losses by replacing older turbines with newer models that are meant to be less hazardous to birds, removing turbines located in the paths of hunting raptors and turning off certain turbines during periods of heavy bird migration.
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Environmentalists have persuaded the energy industry and federal authorities — often through litigation — to modify the size, shape and placement of wind turbines. Last year, five local Audubon chapters, the California attorney general's office and Californians for Renewable Energy reached an agreement with NextEra Energy Resources to expedite the replacement of its old wind turbines in the Altamont Pass with new, taller models less likely to harm birds such as golden eagles and burrowing owls that tend to fly low.
The neighboring Buena Vista Wind Energy Project recently replaced 179 aging wind turbines with 38 newer and more powerful 1-megawatt turbines. That repowering effort has reduced fatality rates by 79% for all raptor species and 50% for golden eagles, according to a study by Shawn Smallwood, an expert on raptor ecology in wind farms.
http://articles.latimes.com/2011/jun/06/local/la-me-adv-wind-eagles-20110606/2
The U.S. Fish and Wildlife Service authorizes limited incidental mortality and disturbance of eagles at wind facilities, provided the operators take measures to mitigate the losses by replacing older turbines with newer models that are meant to be less hazardous to birds, removing turbines located in the paths of hunting raptors and turning off certain turbines during periods of heavy bird migration.
[....]
Environmentalists have persuaded the energy industry and federal authorities — often through litigation — to modify the size, shape and placement of wind turbines. Last year, five local Audubon chapters, the California attorney general's office and Californians for Renewable Energy reached an agreement with NextEra Energy Resources to expedite the replacement of its old wind turbines in the Altamont Pass with new, taller models less likely to harm birds such as golden eagles and burrowing owls that tend to fly low.
The neighboring Buena Vista Wind Energy Project recently replaced 179 aging wind turbines with 38 newer and more powerful 1-megawatt turbines. That repowering effort has reduced fatality rates by 79% for all raptor species and 50% for golden eagles, according to a study by Shawn Smallwood, an expert on raptor ecology in wind farms.