MOIESE — Peak tourist season coincides with mating season at the CSKT Bison Range. Mating season kind of changes things for everybody," Clairmont said. Watch Story Here:PKG KPAX BISON RUT 081126"They're able to reproduce at about two, if not a little earlier. When driving through the range during the rut Clairmont says to stay inside vehicles and give animals their space when driving. CSKT Bison Range security is patrolling the area to keep humans and bison safe.