About the Authors
- Gabriël J. L. Beckers
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* E-mail: beckers@orn.mpg.de
Affiliation Department of Behavioural Neurobiology, Max Planck Institute for Ornithology, Seewiesen, Germany
- Manfred Gahr
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Affiliation Department of Behavioural Neurobiology, Max Planck Institute for Ornithology, Seewiesen, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: GB MG. Performed the experiments: GB. Analyzed the data: GB. Contributed reagents/materials/analysis tools: GB. Wrote the paper: GB. Provided substantial input in writing the paper: MG.