1. Institute of Vertebrate BiologyThe Czech Academy of Sciences Brno Czech Republic
2. Department of EcologyFaculty of ScienceCharles University Prague Czech Republic
3. Royal Society for the Protection of Birds—Centre for Conservation ScienceThe Lodge Sandy UK
4. Bird Migration DepartmentSwiss Ornithological Institute Sempach Switzerland
5. Point Blue Conservation Science Petaluma California
6. Department of ZoologyFaculty of SciencePalacký University Olomouc Czech Republic
7. Conservation Ecology GroupGroningen Institute for Evolutionary Life SciencesUniversity of Groningen Groningen The Netherlands
8. Division of BiologyKansas State University Manhattan Kansas
9. U.S. Geological SurveyUpper Midwest Environmental Sciences Center La Crosse Wisconsin
10. Museum of Natural History Olomouc Czech Republic
11. Department of Biology and Centre for Environmental and Marine StudiesUniversity of Aveiro, Campus Universitário de Santiago Aveiro Portugal
12. South Iceland Research CentreUniversity of Iceland Laugarvatn Iceland
13. Department of EcologySwedish University of Agricultural Sciences Uppsala Sweden
14. Institute of OrnithologyCroatian Academy of Sciences and Arts Zagreb Croatia
15. Museum Heineanum Halberstadt Germany
16. Universitat Politècnica de València Valencia Spain
17. Municipal Museum of Ústí nad Labem Ústí nad Labem Czech Republic
18. ALKA Wildlife o.p.s. Dačice Czech Republic
19. CIEMEPCONICET/UNPSJB Chubut Argentina
20. Prague 10 Czech Republic
21. Migratory Bird CenterSmithsonian Conservation Biology InstituteNational Zoological Park Washington District of Columbia
22. Avian Behaviour and Conservation LabDepartment of Biological SciencesUniversity of Manitoba Winnipeg Manitoba Canada
23. UMR 6249 Chrono‐EnvironnementUniversité de Bourgogne Franche‐Comté Besançon France
24. Groupe de recherche en Ecologie Arctique Francheville France
25. Servicio de Jardines, Bosques y HuertasPatronato de la Alhambra y el Generalife Granada Spain
26. Migratory Bird Center—Smithsonian Conservation Biology InstituteNational Zoological Park Washington District of Columbia
27. British Trust for OrnithologyThe Nunnery Thetford UK
28. UMR7204 CESCOMNHN‐CNRS‐Sorbonne UniversitéCP135 Paris France
29. U.S. Fish and Wildlife ServiceMigratory Bird Management Anchorage Alaska
30. Advanced Facility for Avian ResearchWestern University London Ontario Canada
31. School of Natural SciencesBangor University Bangor UK
32. Biological station RybachyZoological Institute of Russian Academy of Sciences Rybachy Russia
33. Quartier du Caü Arudy France
34. Department of Natural HistoryUniversity Museum of BergenUniversity of Bergen Bergen Norway
35. Department of ZoologyFaculty of BiologyUniversidad de Sevilla Seville Spain
36. Vermont Center for Ecostudies Norwich Vermont
37. U.S. Geological Survey Alaska Science Center Anchorage Alaska
38. Department of Evolutionary BiologyFaculty of Biology and Environmental SciencesCardinal Stefan Wyszyński University in Warsaw Warsaw Poland
39. Lisbon Portugal
40. Cavanilles Institute of Biodiversity and Evolutionary BiologyUniversity of Valencia Paterna, València Spain
41. Stäbelow Germany
42. Department of Integrative BiologyUniversity of Guelph Guelph Ontario Canada
43. Centre for Polar EcologyUniversity of South Bohemia České Budějovice Czech Republic
44. Department of Environmental StudiesUniversity of New England Biddeford Maine
45. Finnish Museum of Natural History LUOMUSUniversity of Helsinki Helsinki Finland
46. Arctic Research Station of Institute of Plant and Animal EcologyUral Branch Russian Academy of Sciences Labytnangi Russia
47. Arctic Research Center of Yamal‐Nenets Autonomous District Salekhard Russia
48. Tokai University Sapporo Campus Hokkaido Japan
49. Leipzig Germany
50. Oenanthe Ecologie Wageningen The Netherlands
51. Institute for Water and Wetland ResearchAnimal Ecology, Physiology and Experimental Plant EcologyRadboud University Nijmegen The Netherlands
52. Institute of BiologyDepartment of Chemistry—BiologyFaculty of Science and TechnologyUniversity of Siegen Siegen Germany
53. Wildlife Preservation Canada Guelph Ontario Canada
54. Ecology Research and Consultancy Utrecht The Netherlands
55. School of Biological SciencesThe University of Queensland Brisbane Queensland Australia