Appendix F Triple H Wind Project Bat Activity Studies
Application for Facility Permit Appendix F Triple H Wind Project Bat Activity Studies Triple H Wind Project Bat Activity Studies for the Triple H Wind Project Hughes and Hyde Counties, South Dakota Final Report May 26 – October 21, 2016 Prepared for: Triple H Wind Project, LLC 3760 State Street, Suite 200 Santa Barbara, California 93105 Prepared by: Brian Heath, Kristina Hammond, Donald Solick Western EcoSystems Technology, Inc. 415 West 17th Street, Suite 200 Cheyenne, Wyoming 82001 February 6, 2017 Draft Pre-Decisional Document - Privileged and Confidential - Not For Distribution Triple H Wind Project Bat Acoustic Survey EXECUTIVE SUMMARY In May 2016, Western EcoSystems Technology, Inc. initiated a bat acoustic survey for the proposed Triple H Wind Project (Project) in Hughes and Hyde counties, South Dakota. The bat acoustic survey conducted at the Project was designed to estimate levels of bat activity throughout the project during summer and fall. Acoustic surveys were conducted at four ground stations located in grassland or cropland habitat near features that could be attractive to bats (e.g., along hedge rows, deciduous trees, near ponds, etc.) from May 26 through October 21, 2016. The four monitoring stations used AnaBat SD2 ultrasonic detectors placed 1.5 meters (4.9 feet) above the ground to minimize insect noise. Station locations were selected to provide spatial coverage throughout the Project. The AnaBat units recorded 1,663 bat passes during 291 detector-nights. All units recorded a combined mean (± standard error) of 5.64 ± 1.61 bat passes per detector-night. For all stations, 57.7% of bat passes were classified as high-frequency (HF; e.g., eastern red bats, and little brown bats), while 42.3% of bat passes were classified as low-frequency (LF; e.g., big brown bats, hoary bats, and silver-haired bats).
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