• to the bird of the day

      Mediterranean Gull

      The large concentrations of Common Black-headed Gulls make it difficult to detec ...
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      Visitor Centre

      Welcome to the Swiss Ornithological Institute in Sempach!
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      ornitho.ch is the official birding exchange platform in Switzerland
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      The return of migratory birds

      Migratory birds are the heralds of spring. Each species follows a clear schedule when returning from its winter quarters.