1. School of Biological Sciences Monash University Melbourne Vic. Australia
2. Max Planck Institute for Ornithology Radolfzell Germany
3. School of BioSciences University of Melbourne Melbourne Vic. Australia
4. Behavioural Ecology Group, Department of Animal Sciences Wageningen University & Research Wageningen The Netherlands
5. Department of Animal Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands