During this time, they also prey on ungulates on their calving grounds. In the berry season they feed almost exclusively on buffalo berries, blueberries, and huckleberries. Fall feeding focuses mainly on the roots of hedysarum once again. Throughout the active season, interior grizzlies will prey on small mammals, especially ground squirrels. Both coastal and interior grizzlies will feed on insects and grubs when the opportunity arises.
Bedding is a common activity throughout the active season.
The habitat selected for bedding is often dictated by weather conditions. During periods of warm summer weather, grizzlies will dig deep beds in remnant pockets of snow or in cool, moist sand, usually under a heavy, shady shrub cover. In rainy weather, beds will be located in dry areas, often up against the base of a tree. Beds can vary from slight scrapes on the ground to deeply excavated pits. The onset of cold temperatures and falling snow stimulates grizzly bears to enter their dens.