Sage Grouse-Montana

FILE - In this April 21, 2007 file photo, Greater sage grouse perform their annual mating ritual near a blind south of the North Park community of Walden, Colo. Montana Gov. Steve Bullock on Tuesday, Sept. 9, 2014 ordered restrictions on oil drilling and other activities blamed for driving down sage grouse populations, as Montana falls into step with states across the West rushing to head off federal intervention for the ground-dwelling bird. (AP Photo/David Zalubowski, File)