A dozen or more big mature bison bulls spend the winter in Round Prairie. Even though the snow cover is heavy along Soda Butte Creek, they seem to find the extra effort pushing the snow off the grass worthwhile. The prevalent feeling watching these bison bulls is that of a powerful, quiet patience. They stand calmly, they walk slowly, they lie in deep bowls of snow for hours at a time chewing their cuds. Conserve energy, work patiently and tolerate your neighbors seems to be the ethic of this group.