Resource Documents by Smallwood, K. Shawn
Smallwood, K. Shawn
Comparing bird and bat fatality-rate estimates among North American wind-energy projects
Abstract: Estimates of bird and bat fatalities are often made at wind-energy projects to assess impacts by comparing them with other fatality estimates. Many fatality estimates have been made across North America, but they have varied greatly in field and analytical methods, monitoring duration, and in the size and height of the wind turbines monitored for fatalities, and few benefited from scientific peer review. To improve comparability among estimates, I reviewed available reports of fatality monitoring at wind-energy projects throughout . . . Complete article »
Smallwood, K. Shawn; Thelander, Carl; et al.
Burrowing Owl Mortality in the Altamont Pass Wind Resource Area
ABSTRACT – We estimated wind turbines in the Altamont Pass Wind Resource Area (APWRA), California, USA, kill >100 burrowing owls (Athene cunicularia hypugaea) annually, or about the same number likely nesting in the APWRA. Turbine-caused mortality was up to 12 times greater in areas of rodent control, where flights close to the rotor plane were disproportionately more common and fatalities twice as frequent as expected. Mortality was highest during January through March. Burrowing owls flew within 50 m of turbines about 10 . . . Complete article »
Smallwood, K. Shawn; and Thelander, Carl
Bird Mortality in the Altamont Pass Wind Resource Area
Abstract. The 165-km² Altamont Pass Wind Resource Area (APWRA) in west-central California includes 5,400 wind turbines, each rated to generate between 40 kW and 400 kW of electric power, or 580 MW total. Many birds residing or passing through the area are killed by collisions with these wind turbines. We searched for bird carcasses within 50 m of 4,074 wind turbines for periods ranging from 6 months to 4.5 years. Using mortality estimates adjusted for searcher detection and scavenger removal rates, we estimated the . . . Complete article »
Smallwood, K. Shawn
Monopole Wind Turbine Towers Are Not Safer for Birds
The claim is often made that monopole wind turbine towers are safer for birds than lattice tower since they lack perching sites. However two recently published peer reviewed studies have found this wishful thinking to be without merit … Download original document: “Monopole Wind Turbine Towers are Not Safer for Birds” Complete article »
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