About the Authors

Carola Greve

c.greve@uni-bonn.de

Affiliation Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany

France Gimnich

Current address: Museum für Naturkunde, Institute of Systematic Zoology, Humboldt University, Berlin, Germany

Affiliation Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany

Rainer Hutterer

Affiliation Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany

Bernhard Misof

Affiliation Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany

Martin Haase

Affiliation Vogelwarte, Zoologisches Institut, Ernst-Moritz-Arndt-Universität Greifswald, Greifswald, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RH MH BM CG. Performed the experiments: CG FG. Analyzed the data: CG FG. Wrote the paper: CG BM. Carried out the field work: CG FG RH.