Investigator G.J. Reynolds alerts us to an alert about deficiencies of deer-collision avoidance devices: “Analysis and effectiveness of deer whistles for motor vehicles: frequencies, levels, and animal threshold responses,” Peter M. Scheifele [pictured here], David G. Browning and Lesa M. Collins-Scheifel, Journal of the Acoustical Society of America [ARLO], vol. 4, no. 13, July 2003. […]