Snow Grouse

The plumage of the snow grouse is perfectly adapted to the changing conditions in the high mountains. In contrast to other bird species, which only change their plumage once or twice a year, snow grouse have 3 moulting stages: white in winter, brown-black in summer and white-brown-black mottled in autumn and spring. This guarantees perfect camouflage all year round. The white feathers also have air pockets that act as a cold insulator. The plumage of all grouse is remarkably dense and heavy; it can make up to 20 per cent of the body weight. The feet of all grouse are feathered, hence their name. In addition to pin-shaped feathers on the toes, snow grouse also have elongated feathers in winter, which cover the ball of the toes and enhance the snowshoe effect. During courtship, the naked, bright red and very swollen stripes of skin above the eyes are visible in all male grouse.

The snow grouse is affected by the consequences of climate change, as its habitat is characterised by cold temperatures and snow.