About the Authors
- Kaspar Delhey
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* E-mail: delhey@orn.mpg.de
Affiliation Behavioural Ecology of Sexual Signals Group, Vogelwarte Radolfzell, Max Planck Institute for Ornithology, Radolfzell, Germany
- Claudia Burger
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Affiliation Behavioural Ecology of Sexual Signals Group, Vogelwarte Radolfzell, Max Planck Institute for Ornithology, Radolfzell, Germany
- Wolfgang Fiedler
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Affiliation Vogelwarte Radolfzell, Max Planck Institute for Ornithology, Radolfzell, Germany
- Anne Peters
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Affiliation Behavioural Ecology of Sexual Signals Group, Vogelwarte Radolfzell, Max Planck Institute for Ornithology, Radolfzell, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: KD WF AP. Performed the experiments: KD. Analyzed the data: KD CB. Contributed reagents/materials/analysis tools: WF AP. Wrote the paper: KD CB AP.