Two of California's highest priority environmental causes, promoting renewable energy and saving the California condor, are on a collision course. The proliferation of prop wind turbines and their well documented history of killing birds of prey have put the future of California condor at great risk. The fact is, in recent years many missing Condors have most likely perished at wind farms in California. Many of the captive bed condors, released into the wild since 1992 have turned up missing. Nearly 1/3 of all the captive bred condors released, perish for unknown reasons. If one looks into the scientific literature, collision is nearly always listed as a major cause of death to Condors.

Over the past two decades, federal officials have brought hundreds of similar cases against energy companies. In July, for example, the Oregon-based electric utility PacifiCorp paid $1.4 million in fines and restitution for killing 232 eagles in Wyoming over the past two years. The birds were electrocuted by poorly-designed power lines. Yet there is one group of energy producers that are not being prosecuted for killing birds: wind-power companies. And wind-powered turbines are killing a vast number of birds every year.

You may not be aware of this but across America each year thousands of birds of prey are killed at wind farms. The public perception of wind turbines is that of slow moving blades turning in the wind on a ridge line. The power and danger of the prop design wind turbine is not well understood. Probably the hardest aspect for the public to grasp is that of "tip speed." The killer of eagles and all birds at wind farms is blade tip speed. This is what kills and this is what the wind industry does not publicize or put in their environmental documents.

The killer of eagles and all birds at wind farms is blade tip speed. ...What is hard to comprehend is that at 20 rotations per minute, the tip speed of the blades for the three turbines works out to 180 mph, 215 mph and 222 miles per hour. The speed and power of these blades is what amputates the wings and heads off flying eagles. From miles away the blades look rather slow, but up close these huge blades move faster than a guillotine.

This afternoon, the Shasta County Board of Supervisors will have a hearing concerning the Hatchet Ridge Wind project. The board's decision will have a significant impact on birds living in and migrating through the West. The Board of Supervisors has not been given the knowledge to make a proper decision on the project. ...The wind power industry learned a lesson from the astounding number of bird kills at Altamont Pass. Instead of pursuing better wind turbine designs that would limit bird kills, it chose a path of cover-up and lies. Today many wind turbine sites have limited access and workers will lose their jobs if they disclose the truth.

After years of trying to get wind farm operators to act voluntarily to reduce bird deaths at the Altamont Pass, California wind farm, environmental groups have filed multiple lawsuits in an effort to change the way the plant operates. ..."We are deeply concerned that we haven't seen a reduction in bird deaths, and concerned as well that certain terms of the settlement were apparently not fully implemented on the agreed-upon timeline," said Elizabeth Murdock.

It may be the time to consider how wind farms fit in with the values which the Wilderness Society represents. If the Society is prepared to go through such a prolonged and worthy fight to save the forests, with all the financial and emotional costs involved, it would be consistent to regard wind farm development with the same scepticism with which it regards the wood chip industry. Both are potent adversaries to the values which I hope we share.

Nothing in nature is ever quite that simple.

Modern industrial wind turbines are just giant metal bird-killing guillotines.