About the Authors

Kevin C. R. Kerr

kkerr@uoguelph.ca

Affiliation Department of Integrative Biology, Biodiversity Institute of Ontario, University of Guelph, Guelph, Ontario, Canada

Darío A. Lijtmaer

Affiliation División Ornitología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina

Ana S. Barreira

Affiliation División Ornitología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina

Paul D. N. Hebert

Affiliation Department of Integrative Biology, Biodiversity Institute of Ontario, University of Guelph, Guelph, Ontario, Canada

Pablo L. Tubaro

Affiliation División Ornitología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KCRK DAL PDNH PLT. Performed the experiments: KCRK DAL ASB. Analyzed the data: KCRK DAL ASB PDNH PLT. Contributed reagents/materials/analysis tools: PLT. Wrote the paper: KCRK DAL ASB PDNH PLT.