FILE - In this June 5, 2013 file photo, some of the hundreds of mustangs the U.S. Bureau of Land Management recently has removed from federal rangeland peer at visitors at the BLM's Palomino Valley holding facility about 20 miles north of Reno, Nev. A federal judge has agreed to let wild horse advocates make their case for a court order blocking another mustang roundup in Nevada in a legal battle underscoring divisions among protection groups over the use of a fertility drug to slow herd growth. U.S. District Judge Larry Hicks set a hearing Feb. 9, 2015 to hear the formal request for a preliminary junction prohibiting the government from gathering 332 horses in the Pine Nut Range southeast of Carson City. (AP Photo/Scott Sonner, File)