1. Institute of Zoology Universität Hamburg Hamburg Germany
2. Department of Biological Sciences Macquarie University Sydney NSW Australia
3. School of Biological, Earth, and Environmental Sciences University of New South Wales Sydney Australia
4. Department of Collective Behavior Max Planck Institute of Animal Behavior Konstanz Germany
5. Centre for the Advanced Study of Collective Behaviour University of Konstanz Konstanz Germany
6. Department of Biology University of Konstanz Konstanz Germany
7. Edward Grey Institute of Field Ornithology, Department of Zoology University of Oxford Oxford UK
8. School of Life Sciences University of Sussex Brighton UK