WindAction Editorials

Migratory birds and bats

New York's Maple Ridge wind energy facility (195 turbines) will slaughter up to 10,000 migratory birds and bats annually. The collision rate reported after the first fall season mortality survey were 34.12 targets per turbine or 6700 collisions, 72% of which are migrating bats (see: ). IWA estimates yearly collisions to rise to 10,000 after accounting for spring migration and other year-round migrants. Reports that cite the number of carcasses recovered are not representative of the number of birds and bats actually killed.
13 Aug 2007

Ecological impacts on bats

Dr. Thomas H. Kunz and others, in their peer-reviewed paper entitled “Ecological impacts of wind energy development on bats: questions, research needs, and hypotheses”, detail the significant risk that industrial-scale wind turbines pose for migratory and local bat populations in the Mid-Atlantic Highlands region of the United States. The authors project that by 2020, annual bat fatalities at wind energy facilities in this region alone can reach 111,000 bats. Kunz and others also state that their preliminary projections of cumulative bat fatalities are “likely to be unrealistically low, especially as larger and increasing numbers of wind turbines are installed.” (See )
6 Aug 2007
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