Silke Bauer (firstname.lastname@example.org) is affiliated with the Swiss Ornithological Institute, in Sempach, Switzerland. Jason W. Chapman is affiliated with the Centre for Ecology and Conservation and with the Environment and Sustainability Institute at the University of Exeter, in Penryn, Cornwall, United Kingdom. Don R. Reynolds is with the Natural Resources Institute at the University of Greenwich, in Chatham, United Kingdom. José A. Alves is affiliated with CESAM at the University of Aveiro, Campus de Santiago, in Portugal, and with the South Iceland Research Centre at the University of Iceland, in Selfoss. Adriaan M. Dokter and Judy Shamoun-Baranes are affiliated with the Institute for Biodiversity and Ecosystem Dynamics at the University of Amsterdam, in The Netherlands. AMD is also affiliated with the Lab of Ornithology at Cornell University, in Ithaca, New York. Myles M. H. Menz is affiliated with the Institute of Ecology and Evolution at the University of Bern, in Switzerland, and with the School of Biological Sciences at the University of Western Australia, in Crawley. Nir Sapir is with the Department of Evolutionary and Environmental Biology at the University of Haifa, in Israel. Michał Ciach is affiliated with the Department of Forest Biodiversity at the University of Agriculture, in Krakow, Poland. Lars B. Pettersson is with the Biodiversity Unit, Department of Biology, at the University of Lund, in Sweden. Jeffrey F. Kelly is affiliated with the Oklahoma Biological Survey and the Department of Biology at the University of Oklahoma, in Norman. Hidde Leijnse is with the Royal Netherlands Meteorological Institute, in De Bilt, The Netherlands.