Department of Zoology, Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-040 01 Košice & Raptor Protection of Slovakia, Kuklovská 5, SK-841 04 Bratislava, Slovakia
Štefan Danko
J. Švermu 1, SK-071 01 Michalovce, Slovakia
Hana Latková
Raptor Protection of Slovakia, Kuklovská 5, SK-841 04 Bratislava, Slovakia