About the Authors

Anne K. Scharf

annekscharf@gmail.com

Affiliations Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Radolfzell, Germany, Department of Biology, University of Konstanz, Konstanz, Germany

Scott LaPoint

Affiliations Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Radolfzell, Germany, Department of Biology, University of Konstanz, Konstanz, Germany

Martin Wikelski

Affiliations Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Radolfzell, Germany, Department of Biology, University of Konstanz, Konstanz, Germany

Kamran Safi

Affiliations Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Radolfzell, Germany, Department of Biology, University of Konstanz, Konstanz, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AKS SL MW KS. Performed the experiments: AKS SL. Analyzed the data: AKS KS. Contributed reagents/materials/analysis tools: AKS SL MW KS. Wrote the paper: AKS SL MW KS.