Department of Ecology and Environmental Protection, Institute for Research on Biodiversity, Faculty of Biology, University of Szczecin, Waska 13, 71-415 Szczecin, Poland
Institute of Marine and Environmental Sciences, Faculty of Physical, Mathematical and Natural Sciences, University of Szczecin, Adama Mickiewicza 16, 70-383 Szczecin, Poland
Operation Baltic, Bird Migration Research Station, University of Gdansk, Poland
Bird Migration Research Foundation, Przebendowo 3, 84-210 Choczewo, Poland