About the Authors

Nicole Geberzahn

nicole.geberzahn@u-psud.fr

Current address: CNPS, CNRS-UMR 8195, Université Paris Sud, Orsay, France

Affiliation Department of Behavioural Neurobiology, Max Planck Institute for Ornithology, Seewiesen, Germany

Manfred Gahr

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: NG MG. Performed the experiments: NG. Analyzed the data: NG. Contributed reagents/materials/analysis tools: MG. Wrote the paper: NG. Provided substantial input in writing the paper: MG.