From NYT: Using Crowds, and GPS, to Chart Roadkill
While Mr. Ringen's friends goad him with nicknames like "Doctor Roadkill," he is not alone in his peculiar pursuit. Hundreds of volunteers collect and upload roadkill data to the California Roadkill Observation System, a mapping Web site built by researchers at the University of California, Davis, to better understand where and why cars strike animals.
(Are these guys like trainspotters?).