| Summary: | Abstract Background In contrast to wind farm collision, birds and bats were understudied and their occurrence and function were poorly understood. Here, study on mortality of iconic bird and bat species were conducted on Adama I and II wind farms during wet (August 2018) and dry (March 2019) seasons. Materials and methods The methodology employed carcass searches using direct physical inspections, semi-structured interviews (n = 50), and focus group discussions of wind farm officials and farmers around Adama I and II wind farms. Descriptive statistics such as frequency, percentages, and chi-square test were employed to analyze the surveyed data. Result The result suggested 51 (78.43%) carcass of bird species comprising 11 families. Out of the 125 installed operational turbines, about 35 species of birds were found in 11 families; 27 unidentified molted carcasses of species of birds were significantly impacted with Adama I and II wind farms. In addition, 11 unidentified species of bat were observed as collision victims. Conclusion Wind farm establishment and expansion in areas with concentrations of the sensitive species had been avoided. To focus on conservation efforts, we illustrate how knowledge of the structural and environmental factors that influence bird and bat collision can be used to record fatalities in the broader landscape. In order to minimize the mortality rate of birds and bats from collision, a comprehensive environmental impact assessment should be undertaken as precautionary measures.
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