Coordinator: 
Marcin Przymencki 
Klaudia Litwiniak 
Mars Muusse
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      cachinnans in Poland 
      National distribution 
      Zastów Karczmiski 
        Kępa Nadbrzeska 
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        Mietków Reservoir & Chwałów 
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    Cachinnans breeding in Poland - distribution
      active map with cachinnans colonies for Poland 
        
      hybridisation zone 
        
      time series / popuilation development for whole Poland 
      For individual colonies, see list lefthand menu. 
       | 
     Breeding-range expansion  of the Caspian Gull   in Europe. 
       K. Litwiniak, M. Przymencki & A. de Jong. 
    British Birds 114 • June 2021 • 331–340.  |