1. Department of Animal Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
2. Department of Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystem Dynamics University of Amsterdam Amsterdam The Netherlands
3. Dutch Centre For Field Ornithology (Sovon) Nijmegen The Netherlands
4. Institute for Wetlands and Waterfowl Research (IWWR) e.V Verden (Aller) Germany
5. Department of Migration Max Planck Institute of Animal Behavior Radolfzell Germany
6. Department of Biology University of Konstanz Constance Germany
7. Institute for Avian Research Wilhelmshaven Germany
8. Wageningen Environmental Research (WEnR), Team Animal Ecology Wageningen The Netherlands