1. Department of Zoology, National Museum of the Czech Republic , Václavské nám. 68, Prague 115 79 , Czech Republic
2. Department of Biology, Faculty of Science, University of Hradec Králové , Rokitanského 62, Hradec Králové 500 03 , Czech Republic
3. Research Station, Polish Hunting Association , Sokolnicza 12, Czempiń 64-020 , Poland