Bat Investigation of Nacelle and Turbine Rotors

This clip shows a bat (not identified to species) flying near a turbine as imaged with a camera sensitive to near infrared light. The bat flies in rapidly from the top left, then turns and flies into the spinning rotor blades of the turbine. The bat appears to be deflected upwards by the blades and escapes a direct strike. The clip was recorded in central Indiana in August 2012. The recording was taken in complete darkness but objects are made visible with supplementary near infrared illumination that is not visible to bats.