About the Authors
- Henrik Brumm
-
* E-mail: brumm@orn.mpg.de
Affiliation Max Planck Institute for Ornithology, Communication and Social Behaviour Group, Seewiesen, Germany
- Irmgard Teschke
-
Affiliation Max Planck Institute for Ornithology, Sensory Ecology Group, Seewiesen, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: HB. Analyzed the data: HB IT. Wrote the paper: HB IT.