Great Bustard

      Otis tarda

      Information

      The males of the Great Bustard weigh up to 18 kg and are the heaviest European birds. Size, white bristle-like feathers at the side of the chin and a rufous tinge on the breast only develop with increasing age. The males turn much of their plumage “inside-out” for the spectacular courtship display, withdraw head and neck completely onto the back, abruptly transforming themselves into a “white bunch of feathers”.

      Voice

      Status (in CH)
      vagrant
      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)
      -
      Migration behaviour
      predominantly resident
      Diurnal/nocturnal migrant
      Nocturnal migrant
      Length (cm)
      75-105
      wing span (cm)
      170-240
      Weight (g)
      3500-18000
      Nest site
      ground
      Food
      plants
      Group
      Bustards
      Habitat
      farmland