1. Cornell Lab of Ornithology and Department of Neurobiology and Behavior Cornell University Ithaca New York USA
2. Department of Psychology University of Maryland, College Park College Park Maryland USA
3. Research School of Biology Australian National University Canberra ACT Australia
4. School of Biological Sciences University of Auckland Auckland New Zealand
5. School of BioSciences The University of Melbourne Melbourne Vic. Australia
6. Bush Heritage Australia Melbourne Vic. Australia
7. School of Biological Sciences The University of Western Australia Perth WA Australia
8. Max Planck Institute for Ornithology Vogelwarte Radolfzell Germany
9. College of Science and Engineering Flinders University Adelaide SA Australia
10. Department of Behavioural and Cognitive Biology Konrad Lorenz Research Center for Behaviour and Cognition University of Vienna Vienna Austria
11. Department of Ecology and Evolutionary Biology Tulane University New Orleans Louisiana USA
12. Department of Animal Ecology & Physiology Institute for Water and Wetland Research Radboud University Nijmegen The Netherlands
13. Department of Animal Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
14. Department of Medical Biochemistry and Microbiology Uppsala University Uppsala Sweden
15. Division of Biological Sciences University of Montana Missoula Montana USA
16. Cornell Lab of Ornithology and Project Feeder Watch Cornell University Ithaca New York USA
17. School of Biological Sciences University of Nebraska‐Lincoln Lincoln Nebraska USA
18. Centro de Investigación en Neurociencias Universidad de Costa Rica San José Costa Rica
19. Esciela de Biología, Universidad de Costa Rica San José Costa Rica