DEADWOOD, S.D. (AP) — A bighorn sheep herd that state wildlife officials released in February into the Grizzly Gulch burn area is thriving in the hills above Deadwood, and its members continue to give residents a show. The sheep are "excellent rock climbers," said John Kanta, regional wildlife manager for the South Dakota Game, Fish and Parks Department Department policy calls for killing wild sheep that have contact with domestic sheep, which can pass on bacteria that causes pneumonia and decimates wild herds.