Video 4

Movie S4. Near-infrared, close-up video of a bat closely approaching and investigating the upper parts of a turbine at ∼0430 hours on September 19, 2013. Blade rotation <1 rpm, wind out of the west-southwest (257°) at 2.7 m/s, and no moon illumination.

Behavior of bats at wind turbines

Paul. M. Cryan, P. Marcos Gorresen, Cris D. Hein, Michael R. Schirmacher, Robert H. Diehl, Manuela M. Huso, David T. S. Hayman, Paul D. Fricker, Frank J. Bonaccorso, Douglas H. Johnson, Kevin Heist, and David C. Dalton

PNAS. 2014. DOI: 10.1073/pnas.1406672111