The mountain hare, sometimes called the blue hare, is smaller than the brown hare, having a body length of 50-60 cm, with a more rounded shape, and without a black upper surface on the tail. Mountain hares also have shorter ears and legs than the brown hare.
In summer, they have a grey/black coat, and in winter they are partly or completely white. Mountain hares moult twice a year - in late autumn, and again in the spring when they lose their winter coat. They live on heather moorland, dry rocky hilltops and occasionally woodland up to the snowline. Mountain hares can reach speeds of over 60km per hour when threatened. They live in a 'form' (a depression in the ground), under cover of heather or rock outcrops.