A new report by researchers at the University of Montana warns that unless energy development slows down, sage grouse populations in the Powder River Basin could die out. The study, which was commissioned by the BLM, was meant to determine whether the sage grouse population there can survive, given current oil and gas drilling activities, and what would happen to the birds if more drilling occurred or if there were new West Nile Virus outbreaks. Wyoming Public Radio’s Willow Belden spoke with Dave Naugle, who co-authored the report. He says the sage grouse population in the Powder River Basin has already declined by 82 percent as a result of energy development.