The media release from the Minister of Planning, Victoria, denying the permit for the Yaloak Wind Farm because of the unacceptable risk to the Wedge-tailed eagle.

The generation of electricity by wind is a growing industry in Pennsylvania. While wind energy is certainly an attractive alternative to the pollution produced by fossil fuel power plants, all potential environmental impacts must be measured if electricity produced this way is to truly qualify as “green energy.” Surprisingly, only minimal environmental studies need to be done to site a wind farm in Pennsylvania. Improper siting of some wind farms in the U.S. has impacted migratory bird, resident bird, and bat populations. We present bird-impaction data from an industrial facility 30 km south of a proposed wind farm in Luzurne County, Pennsylvania, that suggest caution in the blind embrace of this energy technology. Siting decisions are made at the local government levels and are primarily based on economic incentives. We argue (a) that this energy alternative must incorporate robust site-specific impaction studies at each wind farm to demonstrate effects throughout the Commonwealth, and (b) that local government officials be given the guidance necessary to encourage and provide environmental oversight to wind farms in their areas.

I am writing on behalf of the Board of Directors for the Braddock Bay Bird Observatory concerning the recent EIS issued for the Prattsburgh/Italy Wind Farm.....All BBBO Board members are trained ornithologists with extensive knowledge about local breeding and migratory birds. In addition, the Board has considerable expertise in methodologies and techniques used to assess and census breeding and migratory bird use of the local landscape (e.g. radar, breeding and migratory bird surveys, bird banding, population demographic, etc).... BBBO’s Board of Directors was surprised and shocked to see our organization’s data used in Ecogen’s EIS. We were not informed or consulted about the use of our data and, furthermore, we were not sent a copy of the draft EIS to review.

BBC Research & Consulting's 2005 report for the National Wind Coordinating Committee that studies 9 wind plant sitings in an effort to identify circumstances that distinguish welcomed projects from projects that were not accepted by communities.

...additional radar studies would be required to see if spring migration patterns are different than those measured in the fall. Typically spring migration is shorter than fall migration with fewer numbers in the shorter period of time. How this will affect the numbers of birds passing through the rotor swept volume is unknown. It is important to determine the seasonal timing, altitude and numbers of migrant birds passing over the proposed project site and the effects of weather upon their passage over a greater part of the whole year. In addition, it is possible to determine some of the bird and bat species passing through the project site by accoustical sensors to determine which species, that make vocal calls, are migrating through the site.

The attached report is on collision modeling done for the proposed Yalloak wind farm in Victoria. The wind farm was rejected because of the large risk to Wedge-tailed Eagles. This report suggests that 9 of a population of 12 would be killed in the first year resulting in a population sink.

...some wind power facilities, such as the Altamont Pass Wind Resource Area (APWRA) in eastern Alameda and Contra Costa Counties, California, are causing severe environmental impacts to raptor populations due to bird kills from collisions with turbines and electrocution on power lines.

Wind turbines in the Altamont Pass Wind Resource Area (APWRA) provide on average 1.1 billion kilowatt-hours (kWh) of emissions-free electricity annually, enough to power almost 200,000 average households per annum, but these turbines also kill birds that are legally protected, and have been doing so for decades. This five-year research effort focused on better understanding the causes of bird mortality at the world's largest wind farm. Researchers studied 2,548 wind turbines and combined their data with results from 1,526 wind turbines they had studied previously. They sought to: (1) quantify bird use, including characterizing and quantifying perching and flying behaviors of individual birds around wind turbines; (2) evaluate flight behaviors and the environmental and topographic conditions associated with them; (3) identify possible relationships between bird mortality and bird behaviors, wind tower design and operations, landscape attributes, and prey availability; and (4) develop predictive, empirical models that identify turbine or environmental conditions that are associated with high vulnerability. Researchers concluded that bird fatalities at the APWRA result from various attributes of wind turbine configuration and placement, and that species-specific behavior plays a large role in how each contributory factor affects mortality. The report details numerous specific observations. Researchers identified and evaluated possible measures to mitigate bird mortality in the APWRA. They offer recommendations to discontinue or modify some current management actions, to implement new ones immediately, and to experiment with others. Data presented in the report support these recommendations. The results suggest that repowering with carefully placed, modern wind turbines mounted on taller towers may be the preferable means to substantially reduce bird mortality.

This graphic shows the relationship between the height of turbines and the collision threat to nocturnal migrants at the Chautauqua Wind Farm, NY, in the Fall of 2003. A companion graphic included in the NWW photo gallery depicts this threat to noctural migrants in the Spring of 2003.