Authors
Włodzimierz Meissner
Ornithology Unit, Department of Vertebrate Ecology & Zoology, Faculty of Biology, University of Gdańsk, Poland
Szymon Bzoma
Waterbird Research Group KULING, Gdańsk
Agnieszka Ożarowska
Ornithology Unit, Department of Vertebrate Ecology & Zoology, Faculty of Biology, University of Gdańsk, Poland
Zenon Rohde
Ornithological Station, Museum and Institute of Zoology, Polish Academy of Sciences, Gdańsk, Poland
Piotr Rydzkowski
Waterbird Research Group KULING, Gdańsk
Marta Witkowska
Ornithology Unit, Department of Vertebrate Ecology & Zoology, Faculty of Biology, University of Gdańsk, Poland
Anna Włodarczak-Komosińska
Waterbird Research Group KULING, Gdańsk
Cezary Wójcik
Waterbird Research Group KULING, Gdańsk