1. Research Group Evolutionary Biology Max Planck Institute for Ornithology Seewiesen Germany
2. Department of Life Sciences Imperial College London Silwood Park Campus UK
3. Department of Evolutionary Biology Bielefeld University Bielefeld Germany
4. Research Group Evolution of Sensory Systems Max Planck Institute for Ornithology Seewiesen Germany
5. Department of Behavioural Neurobiology Max Planck Institute for Ornithology Seewiesen Germany
6. Department of Animal and Plant Sciences University of Sheffield Sheffield UK