Are Mountain Hares Herbivores?

Are Mountain Hares Herbivores? Mountain hares are herbivores (graminivores, folivores). They feed on grasses, lichen, leaves, twigs, bark, and other plants according to season and habitat. What does mountain hare eat? Grasses, lichen, and bark have also been known to been eaten. However, in the winter, when most of the food is buried under snow,