A report released by the U.S. Fish and Wildlife Service says Colorado can support at least 1,128 wolves. The agency studied seven national forests and their surrounding public and private lands, and determined that Colorado's abundant elk and deer herds would not only sustain wolves but also discourage them from killing livestock. The report estimates wolf predation would affect less than 1 percent of the ranchers in areas where the wolves could roam, although some ranchers could suffer significant losses. The report also suggests that any wolf recovery plan include New Mexico, Utah, and Wyoming. Michael Robinson, executive director of Sinapu, a group trying to bring wolves back to the state, has urged the agency to draw up a wolf recovery plan for the southern Rockies. For a copy of the 318-page Colorado Gray Wolf Recovery: A Biological Feasibility Study, contact the U.S. Fish and Wildlife Service, 730 Simms St., Suite 290, Golden, CO 80401 (303/231-5280).