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József Gyurácz
Institute of Biology, Faculty of Sciences, University of West Hungary, Szombathely, Károlyi Gáspár tér 4., 9700 Hungary
Károly Nagy
MME/BirdLife Hungary, Budapest, Költő utca 21., 1121 Hungary
Tibor István Fuisz
Department of Zoology, Bird Collection, Hungarian Natural History Museum, Budapest, Baross u. 13., 1088 Hungary
Zsolt Karcza
MME/BirdLife Hungary, Budapest, Költő utca 21., 1121 Hungary
Tibor Szép
Institute of Environmental Sciences, College of Nyíregyháza, Nyíregyháza, Sóstói út 31/b, 4400 Hungary