About the Authors

Miguel Ferrer

mferrer@ebd.csic.es

Affiliation Department of Ethology and Biodiversity Conservation, Estación Biológica de Doñana, Consejo Superior de Investigaciones Cientificas (CSIC), Seville, Spain

Keith Bildstein

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

Vincenzo Penteriani

Affiliation Department of Conservation Biology, Estación Biológica de Doñana, Consejo Superior de Investigaciones Cientificas (CSIC), Seville, Spain

Eva Casado

Affiliation Fundación Migres, Seville, Spain

Manuela de Lucas

Affiliation Department of Ethology and Biodiversity Conservation, Estación Biológica de Doñana, Consejo Superior de Investigaciones Cientificas (CSIC), Seville, Spain

Competing Interests

The authors have declared that no competing interests exist. All data used for this study is freely available upon request to the authors.

Author Contributions

Conceived and designed the experiments: MF KB. Performed the experiments: VP EC MdL. Analyzed the data: MF KB VP EC. Contributed reagents/materials/analysis tools: MF. Wrote the paper: MF.