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Species of bat so far identified in the bird kills incident at the Mountaineer Wind Farm in West Virginia (main story) appear to be limited to the Vespertilionidae family and include red bats, eastern pipistrelles, little brown bats, hoary bats and northern long-eared bats. These are not endangered species. Studies of bat kills at the three turbine Buffalo Mountain facility in Tennessee, overseen by Chuck Nicholson of the Tennessee Valley Authority, show that about two-thirds of the dead animals have been red bats. Other species involved are the hoary bat, the eastern pipistrelle, big brown bat and the silver-haired bat, he says. "Most of the mortality is occurring during late summer and fall. It's probably by bats dispersing or migrating through the area," adds Nicholson. A bat biologist at the University of Tennessee, Maarten Vonhof, says that recently a lot of eastern pipistrelles have been found at kill sites. "Nobody knows why," says Vonhof.
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