About the Authors

Corinne J. Kendall

cjk2113@columbia.edu

Affiliations Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, United States of America, Ornithology Section, Department of Zoology, National Museums of Kenya, Nairobi, Kenya

Munir Z. Virani

Affiliations Ornithology Section, Department of Zoology, National Museums of Kenya, Nairobi, Kenya, The Peregrine Fund, Boise, Idaho, United States of America

J. Grant C. Hopcraft

Affiliation Frankfurt Zoological Society, Arusha, Tanzania

Keith L. Bildstein

Affiliation Acopian Center for Conservation Learning, Hawk Mountain Sanctuary, Orwigsburg, Pennsylvania, United States of America

Daniel I. Rubenstein

Affiliation Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CJK DIR KLB MZV. Performed the experiments: CJK MZV KLB. Analyzed the data: CJK GCH. Contributed reagents/materials/analysis tools: GCH. Wrote the paper: CJK GCH DIR.