1. Department of Biological Sciences, Old Dominion University, Norfolk, Virginia 23529, USA
2. Evolutionary Ecology Group (EVECO), University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, BE-2610, Wilrijk, BELGIUM
3. Siedlce University of Natural Sciences and Humanities, Institute of Biological Sciences, ul. B. Prusa 14, 08–110 Siedlce, POLAND
4. Department of Biology (Biogeography Research Lab, Zoology Section), Faculty of Science, Hacettepe University, 06800, Beytepe, Ankara, TURKEY
5. Swiss Ornithological Institute, Sempach, SWITZERLAND