This evidence is supported by studies and quotes from experts. Newer, more efficient turbines have been installed at the Altamont Pass wind farm, known as the Altamont Wind Resource Area, but they pose a serious risk to birds of prey (369). Biologists soon after installing the first turbines “reported large numbers of golden eagles, hawks, and other birds of prey flying in the rotating blades” (Nijhuis 369). Steps have been taken to address this problem, but another study, this one by the California Energy Commission, places the number of birds killed well over a thousand (Nijhuis 370). Tim Cullinan talks about the turbines in the plains, noting that bird mortality in that region is significantly lower than in Altamont. He also comments that “we cannot lose sight of the greater benefits of wind” suggesting that despite the concern over wildlife , wind energy is vital and should continue (Nijhuis 371). Other conservationists appear to agree, with groups suggesting guidelines and policies, most notably Audubon Washington proposing multiple observation seasons for areas where a wind farm could be built, wildlife studies in that area, and wind farm planning both at the state and multiple levels. -state level (Nijhuis 371). In general, environmentalists want to contribute to the growth of wind farms, believing that this will help