Black Grouse

      Tetrao tetrix

      Information

      In spring, the communal display (lek) of the Black Grouse belongs to one of the most impressive sights. As from April, when there is still a lot of snow in the mountains, the Black Grouse cocks gather at their traditional display grounds. Long before sunrise, in the bone-chilling cold, the first bubbling sounds can be heard. Each cock defends a small area in the courting arena and tries to display itself most effectively. After mating, the cocks care neither for the construction of the nest nor for the brood.

      Voice

      Status (in CH)
      widely breeding resident
      Annual cycle
      The bar on the top line indicates during which seasons the species can be observed regularly in Switzerland. There can be great seasonal fluctuations of numbers. The middle bar indicates the typical migration seasons of a species. The bottom bar indicates the period during which the species normally breeds. As a rule it spans the period from egg-laying to fledging of the young.
      Annual cycle
      Annual cycle

      Facts

      Population size in Switzerland (Pairs)
      12'000 - 16'000 (2013-2016)
      Migration behaviour
      resident
      Length (cm)
      40-55
      wing span (cm)
      65-80
      Weight (g)
      750-1400
      Nest site
      ground
      Food
      plants
      Group
      Grouse
      Habitat
      forest, alpine habitats
      Distribution
      Distribution
      Distribution