Abstract
Western EcoSystems Technology, Inc. initiated surveys in July 2009 designed to assess bat use within the proposed Hermosa West Wind Resource Area, Albany County, Wyoming. Based on fatality rates at wind-energy facilities in the Rocky Mountain/western North American region, the bat activity observed at this project, and habitat of the project, it is expected that the potential risk to bats from turbine operations to be similar to rates observed at the Foote Creek Rim Facility in Wyoming, and not nearly as high as the rates observed at eastern ridgeline facilities. As more research is conducted at facilities in Wyoming, more information regarding the potential direct impacts of Wyoming wind-energy facilities to bats will be obtained.