1. Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH, USA.
2. Department of Migration, Max Planck Institute of Animal Behavior, Radolfzell, Germany.
3. Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany.
4. Department of Biology, University of Maryland, College Park, MD, USA.
5. Wildlife Biology Program, Department of Ecosystem and Conservation Sciences, W.A. Franke College of Forestry and Conservation, University of Montana, Missoula, MT, USA.
6. Black Rock Forest, 65 Reservoir Road, Cornwall, NY, USA.
7. Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, USA.
8. School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA.
9. Department of Natural Resources and Society, University of Idaho, Moscow, ID, USA.
10. National Socio-Environmental Synthesis Center, Annapolis, MD, USA.
11. Department of Environment and Natural Resources, Government of the Northwest Territories, Fort Smith, NT, Canada.
12. School of the Environment, Washington State University, Pullman, WA, USA.
13. Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA.
14. Center for Biodiversity and Global Change, Yale University, New Haven, CT, USA.
15. College of Natural Resources, North Carolina State University, Raleigh, NC, USA.
16. BirdLife Norway, Trondheim, Norway.
17. U.S. Geological Survey, Western Ecological Research Center, Dixon Field Station, Dixon, CA, USA.
18. Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
19. South Iceland Research Centre, University of Iceland, Laugarvatn, Iceland.
20. Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.
21. Teton Raptor Center, Jackson Hole, WY, USA.
22. Global Wildlife Conservation Center, College of Environmental Science and Forestry, State University of New York, Syracuse, NY, USA.
23. School of Aquatic & Fishery Sciences, University of Washington, Seattle, WA, USA.
24. U.S. Geological Survey, Patuxent Wildlife Research Center, Laurel, MD, USA.
25. Centre d’études nordiques, Université du Québec à Rimouski, Rimouski, QC, Canada.
26. Latvian National Museum of Natural History, Riga, Latvia.
27. Institute of Biology, University of Latvia, Salaspils, Latvia.
28. Latvian Swan Research Society, Kalnciems, Latvia.
29. Alaska Department of Fish and Game, Fairbanks, AK, USA.
30. National Park Service, Denali National Park and Preserve, Denali Park, AK, USA.
31. Science & Technology Branch, Environment & Climate Change Canada, Delta, BC, Canada.
32. Wildfowl & Wetlands Trust, Slimbridge, UK.
33. Manomet, Inc., Saxtons River, VT, USA.
34. Biological Station Rybachy, Zoological Institute of Russian Academy of Sciences, St. Petersburg, Russia.
35. High Arctic Institute, Orion, IL, USA.
36. School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland.
37. Alaska Department of Fish and Game, Anchorage, AK, USA.
38. Aquila Environmental, Fairbanks, AK, USA.
39. High Arctic Gull Research Group, Bamfield, BC, Canada.
40. Department of Environment and Natural Resources, Government of the Northwest Territories, Inuvik, NT, Canada.
41. Alaska Department of Fish and Game, Palmer, AK, USA.
42. Biodiversity Research Institute, Portland, ME, USA.
43. Reneco International Wildlife Consultants, Abu Dhabi, United Arab Emirates.
44. Raptor View Research Institute, Missoula, MT, USA.
45. Vogeltrekstation—Dutch Centre for Avian Migration and Demography, Wageningen, Netherlands.
46. Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands.
47. Department of Natural Resource Sciences, McGill University, Ste Anne-de-Bellevue, QC, Canada.
48. Washington Department of Fish and Wildlife, Olympia, WA, USA.
49. Institute for Avian Research “Vogelwarte Helgoland,” Wilhelmshaven, Germany.
50. Fisheries and Oceans Canada, Winnipeg, MB, Canada.
51. Great Lakes Institute for Environmental Research, School of the Environment, University of Windsor, Windsor, ON, Canada.
52. Littoral Environnement et Sociétés (LIENSs), CNRS, La Rochelle University, La Rochelle, France.
53. Arctic Raptor Project, Rankin Inlet, NU, Canada.
54. Boise State University, Raptor Research Center, Boise, ID, USA.
55. Research and Technology Centre (FTZ), Kiel University, Büsum, Germany.
56. Département de Biologie & Centre d’Études Nordiques, Université Laval, Quebec City, QC, Canada.
57. Environment & Climate Change Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON, Canada.
58. Institute of Geography, Russian Academy of Sciences, Moscow, Russia.
59. School of Biology and Ecology, University of Maine, Orono, ME, USA.
60. Centre d’Etudes Biologiques de Chizé, CNRS, La Rochelle University, Villiers en Bois, France.
61. Percy Fitzpatrick Institute of African Ornithology, University of Cape Town, Rondebosch, South Africa.
62. Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, Washington DC, USA.
63. Northeast Climate Adaptation Science Center, University of Massachusetts Amherst, Amherst, MA, USA.
64. Department of Integrative Biology, University of Windsor, Windsor, ON, Canada.
65. Environment & Climate Change Canada, Pacific Wildlife Research Centre, Delta, BC, Canada.
66. Department of Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, NT, Canada.
67. U.S. Fish & Wildlife Service, Migratory Bird Management, Anchorage, AK, USA.
68. National Park Service, Gates of the Arctic National Park & Preserve, Fairbanks, AK, USA.
69. U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, Boise, ID, USA.
70. Kidd Biological, Inc., Anacortes, WA, USA.
71. Institute for Wetlands and Waterbird Research e.V., Verden (Aller), Germany.
72. Department of Integrative Biology, University of Colorado, Denver, CO, USA.
73. Polar Knowledge Canada, Cambridge Bay, NU, Canada.
74. Department of Environment and Natural Resources, Government of the Northwest Territories, Fort Simpson, NT, Canada.
75. Manaaki Whenua—Landcare Research, Lincoln, New Zealand.
76. U.S. Fish & Wildlife Service, Arctic National Wildlife Refuge, Fairbanks, AK, USA.
77. National Park Service, Alaska Inventory and Monitoring Program, Anchorage, AK, USA.
78. Korea Institute of Environmental Ecology, Yuseonggu, Daejeon, Republic of Korea.
79. U.S. Fish & Wildlife Service, Juneau, AK, USA.
80. Department of Bioscience—Kalø, Aarhus University, Rønde, Denmark.
81. Biology Department, Acadia University, Wolfville, NS, Canada.
82. National Park Service, Lake Clark National Park and Preserve, Anchorage, AK, USA.
83. Department of Biology and the McCourt School of Public Policy, Georgetown University, Washington, DC, USA.
84. Wildlife Conservation Society, Arctic Beringia Program, Fairbanks, AK, USA.
85. University of Manitoba, Winnipeg, MB, Canada.
86. Conservation Science Global, Inc., West Cape May, NJ, USA.
87. Division of Forestry and Natural Resources, West Virginia University, Morgantown, WV, USA.
88. Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.
89. Wageningen Environmental Research, Wageningen University & Research, Wageningen, Netherlands.
90. Independent researcher, Reykjavik, Iceland.
91. Laboratory of Ornithology, Institute of Biological Problems of the North FEB RAS, Magadan, Russia.
92. Arctic Research Station of Institute of Plant and Animal Ecology UB, RAS, Labytnangi, Yamal-Nenets Autonomous District, Russia.
93. Durham University, Durham, UK.
94. University of Glasgow, Glasgow, Scotland.
95. Marine and Environmental Sciences Centre, Institute of Marine Research and Okeanos R&D Centre, University of the Azores, Horta, Portugal.
96. Justus-Liebig University, Gießen, Germany.
97. Environment & Climate Change Canada, Yellowknife, NT, Canada.
98. Environment Yukon, Whitehorse, YT, Canada.
99. SOVON, Nijmegen, Netherlands.
100. U.S. Geological Survey Alaska Science Center, Anchorage, AK, USA.
101. British Columbia Ministry of Environment, Prince George, BC, Canada.
102. Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA.
103. U.S. Fish & Wildlife Service, Migratory Bird Management, Denver, CO, USA.
104. Center for Conservation Biology, College of William & Mary, Williamsburg, VA, USA.
105. Georgia Department of Natural Resources, Brunswick, GA, USA.
106. HawkWatch International, Salt Lake City, UT, USA.
107. H. T. Harvey & Associates, Los Gatos, CA, USA.
108. Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen, Denmark.
109. Institute of Plant and Animal Ecology, Ural Division Russian Academy of Sciences, Ekaterinburg, Russia.
110. National Park Service, Yukon-Charley Rivers National Preserve, Central Alaska Inventory and Monitoring Network, Fairbanks, AK, USA.
111. Hawk Mountain Sanctuary, Kempton, PA, USA.
112. Wageningen Marine Research, IJmuiden, Netherlands.
113. Bureau Waardenburg, Culemborg, Netherlands.
114. Canadian Wildlife Service, Environment & Climate Change Canada, Saskatoon, SK, Canada.
115. North Slope Borough, Department of Wildlife Management, Utqiaġvik, AK, USA.
116. School of Environment and Natural Resources, The Ohio State University, Columbus, OH, USA.
117. Earthspan Foundation, Minden, NV, USA.
118. Ornitela UAB, Vilnius, Lithuania.