About the Authors

Carlos D. Santos

cdsantos@orn.mpg.de

Affiliations Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Am Obstberg 1, Radolfzell, Germany, Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, Campus do Bacanga, São Luís, Maranhão, Brazil, Centro de Estudos do Ambiente e do Mar, Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal

Stefanie Neupert

Affiliation Department of Biology, University of Konstanz, Konstanz, Germany

Hans-Peter Lipp

Affiliations Institute of Anatomy, University of Zürich, Zürich, Switzerland, School of Laboratory Medicine, Kwazulu-Natal University, Durban, South Africa

Martin Wikelski

Affiliations Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Am Obstberg 1, Radolfzell, Germany, Department of Biology, University of Konstanz, Konstanz, Germany

Dina K. N. Dechmann

Affiliations Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Am Obstberg 1, 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: CDS DKND MW HPL. Performed the experiments: CDS SN. Analyzed the data: CDS. Contributed reagents/materials/analysis tools: DKND MW HPL. Wrote the paper: CDS.