1. SEFAG, Forest Management and Wood Industry Share Co., Bajcsy-Zsilinszky Str. 21, 7400 Kaposvár, Hungary
2. Kaposvár University, Department of Wildlife Biology and Ethology, P.O. Box 16, 7401 Kaposvár, Hungary;
3. The study is dedicated to the memory of Kornél Ács (1978–2016)