Yellow-legged Gull

      Larus michahellis

      Information

      The Yellow-legged Gull is the only large gull to breed in Switzerland. It was considered to be the same species as the Herring Gull. However, now the Yellow-legged Gull and the Caspian Gull have been classified as two separate species for new researches have shown that their genomes differ substantially. The Yellow-legged Gull began to colonize Switzerland during the 1960s. The number of colonies and breeding pairs has strongly increased and the species started to nest in close proximity to humans.

      Voice

      Status (in CH)
      locally breeding resident, regular, common summer and winter visitor
      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)
      1'240 - 1'430 (2013-2016)
      Migration behaviour
      resident to short-distance migrant
      Diurnal/nocturnal migrant
      Diurnal and nocturnal migrant
      Length (cm)
      52-58
      wing span (cm)
      120-140
      Weight (g)
      800-1500
      Nest site
      ground, buildings
      Food
      crustaceans, fish, earthworms, insects, birds, mammals, carcasses, rubbish
      Group
      Gulls
      Habitat
      lakes, rivers & streams, wetlands, farmland, settlements
      Distribution
      Distribution
      Distribution