The thousand of birds killed by the wind turbines at Altamont Pass tainted the reputation of the renewable energy source. But according to a recent report by the Ventana Wildlife Society and the Stanford Solar and Wind Energy Project, smaller wind-power projects may be able to harvest energy in some parts of Monterey County without harming the endangered California condor. "The condor is the main thing that's been holding up the development of wind-power projects in Monterey County," said John Roitz.

Wind turbine memorial. Illustration: Rob Biddulph Imagine that at the flick of a switch, you could not only turn a light on or off but select which power source you were going to use. Would an eco warrior choose wind power or coal? Surely this is a no-brainer. Not necessarily.

Turbines already are taking a heavy toll in West Virginia and Pennsylvania. The Pennsylvania Game Commission released a report last spring showing the death rate is highest for bats, which additionally face being wiped out by a mysterious phenomenon called "white-nose syndrome." The evidence has mounted since studies in 2004 showed 1,500 to 4,000 bats annually were killed by the 44 turbines on West Virginia's Backbone Mountain.

Wind energy has been touted as cost-effective to produce clean energy as well as jobs. That promise, along with new government subsidies, has helped wind turbines pop up on hills and fields throughout America. But not every environmentalist is happy about that development. Critics charge that wind-energy development can cause habitat fragmentation-a displacement of a species that can eventually reduce its numbers-as well as the deaths of birds and bats (a species that is especially vulnerable due to its low reproductive rates) that collide with the wind turbines' massive rotor blades.

Wind turbines in Oklahoma may be good for producing clean energy, but they are bad news for bats and the lesser prairie chicken. As government officials try to harness the Oklahoma wind as a practical power source, they must also be mindful of the birds and bats most affected by wind farms.Western Oklahoma is home to bat colonies and the lesser prairie chicken, but the area also has some of the best real estate for wind farms.

A state wildlife biologist says the Whistling Ridge Wind Project, proposed for a timbered ridge in eastern Skamania County, could cause high wildlife mortality, especially for bats and raptors. Surveys of the 1,152-acre site, including those done for the applicant, Bingen-based SDS Lumber Co., show the area is heavily used by bats, raptors and other birds, biologist Michael Ritter said in formal comments to the state agency that will decide whether to approve the project.

Wind turbines are responsible for the deaths of between 10,000 and 40,000 birds each year, according to the American Bird Conservancy. Debate over the significance of the threat turbine blades pose to migratory birds is about as old as the concept of wind farms themselves. It began in Altamont Pass, Calif., site of one of the first U.S. wind farms, where there were more than 4,000 turbines. Hundreds of bird carcasses were found on the farm grounds, leading bird conservationists to propagate information that wind turbines were inherently deadly to birds.

Concerns about the safety of birds and bats were voiced at a state hearing yesterday on a proposal to construct a wind-energy park in Coos County. ...A subcontractor for the developer conducted a study of the birds and bats in the project area, but Don Kent, a member of the site committee and the Natural Heritage Board, said it was inadequate.

Wendy Perrone, executive director of the Three Rivers Avian Center in Brooks, W.Va., said Friday that she had not seen all the details about the project, but there are some concerns. "The mountain range is a migration route used for many decades and centuries....from butterflies to bats up to and including eagles," she said. Windmill projects have a potential for killing bats. Why this happens is not yet clear, Perrone said.

Wind energy developers in New York now have guidelines on how to survey potential turbine sites for their impact on birds and bats. Earlier this month, the state Department of Environmental Conservation issued its advice regarding how to minimize damage to bat and bird habitats. "These guidelines set forth DEC's recommendations to commercial wind energy developers on how to characterize bird and bat resources at on-shore wind energy sites and how to estimate and document impacts resulting from the construction and operation of these projects."

New York State Department of Environmental Conservation (DEC) Commissioner Pete Grannis today announced that the agency has issued guidelines for evaluating the potential impacts of commercial wind energy projects on birds and bats in New York State. "While wind energy has significant environmental benefits when compared to energy produced from fossil fuel, DEC must consider any potential negative environmental impacts of wind energy production when evaluating proposed projects," said Commissioner Grannis.

The Minerals Management Service's 800 page Final Environmental Impact Statement on Cape Wind was released on Friday and in a largely favorable review found nearly all impacts to be negligible or minor. The few exceptions, where the 130 turbine wind farm would potentially or certainly have moderate to major impact were on birds, especially marine birds such as terns or sea ducks, on navigation and safety of recreational or commercial fishing boats, although those effects could be mitigated, and on visual resources of Nantucket Sound.

Kunz, an internationally known bat researcher and director of BU’s Center for Ecology and Conservation Biology, said wind turbines annually kill many raptors as well as tens of thousands of bats in the United States. Since these turbines have been promoted as an answer to America’s energy woes, Kunz called for more research into the environmental effects of wind power. He also warned that high numbers of bat fatalities may cause populations of insects to increase dramatically. ...Unfortunately, Kunz said, many power companies refuse to fund research on the impacts of wind farms and some even deny scientists access to turbines to count bird and bat fatalities.

Ongoing studies of birds, marine mammals and sea turtles off the Jersey Shore have found an abundance of life in an area where hundreds of wind turbines could be spinning by 2020, participants in a public meeting said today. ..."We're trying to figure out where are the areas of sensitive habitat, if you will, areas that perhaps we should think twice about or avoid before we build something," he said. "The objective here is to try and steer these facilities to areas where impacts will be reduced."

A Northumberland County firm has backed off a plan to build wind turbines on South Mountain in eastern Lebanon County. ...But birds and bats got in the way of the plans, said Justin R. Dunkelberger, chief executive for Penn Wind. He explained that the South Mountain site is part of a bird-migration path and is also frequented by bats. "As a wind developer, we have to be concerned with birds and bats," Dunkelberger said. "We want to be responsible developers."

While the open sky is big enough for 400-foot-high wind turbines and migratory birds, animal conservationists are airing their concerns about the threat windmills pose to wildlife. "Any place thinking about installation (of wind turbines) should take years studying the issue," Keith Bildstein, director of conservation science at Hawk Mountain Sanctuary, said Friday. "That is a prescription the wind industry apparently finds distasteful." Bildstein and other local conservationists and bird-watchers say the wind industry fails to adequately study bird migration patterns before wind projects break ground.

About 140 people got another look at the coming world of wind power Friday. Birds and bats were major topics, but the basic message was that there needs to be more study of the impact of wind farms and turbines. "We're kind of finding our way along with the industry," Kathy Boydston, a biologist with Texas Parks and Wildlife Department, told the gathering at the Ambassador Hotel in Amarillo. Experts are trying to find ways to deter birds and bats from hitting turbines, but the lack of information on how many fall victim and how it happens is lacking.