About the Authors

John A. Lesku

Affiliation Max Planck Institute for Ornithology, Seewiesen, Germany

Leith C. R. Meyer

Affiliation University of the Witwatersrand, Johannesburg, South Africa

Andrea Fuller

Affiliation University of the Witwatersrand, Johannesburg, South Africa

Shane K. Maloney

Affiliations University of the Witwatersrand, Johannesburg, South Africa, University of Western Australia, Crawley, Australia

Giacomo Dell'Omo

Affiliation Ornis Italica, Rome, Italy

Alexei L. Vyssotski

Contributed equally to this work with: Alexei L. Vyssotski, Niels C. Rattenborg

Affiliation University of Zurich/ETH Zürich, Zurich, Switzerland

Niels C. Rattenborg

Contributed equally to this work with: Alexei L. Vyssotski, Niels C. Rattenborg

rattenborg@orn.mpg.de

Affiliation 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: JAL NCR. Performed the experiments: JAL LCRM AF SKM NCR. Analyzed the data: JAL NCR. Contributed reagents/materials/analysis tools: AF GD ALV. Wrote the paper: JAL NCR ALV. Veterinarian and lead surgeon: LCRM.