About the Authors

Iris Schöberl

iris.schoeberl@univie.ac.at

Affiliations Department of Behavioural Biology, University of Vienna, Vienna, Austria, Core Facility Konrad Lorenz Research Station, University of Vienna, Grünau im Almtal, Austria

Manuela Wedl

Affiliations Department of Behavioural Biology, University of Vienna, Vienna, Austria, Core Facility Konrad Lorenz Research Station, University of Vienna, Grünau im Almtal, Austria

Andrea Beetz

Affiliation Department of Special Education, Institut für sonderpädagogische Entwicklungsförderung und Rehabilitation, University of Rostock, Rostock, Germany

Kurt Kotrschal

Affiliations Department of Behavioural Biology, University of Vienna, Vienna, Austria, Core Facility Konrad Lorenz Research Station, University of Vienna, Grünau im Almtal, Austria

Competing Interests

The project was funded by the Austrian Science Fund (FWF); Manuela Wedl and Iris Schöberl were employed via this project. The funding agency was not involved in the collection, analysis, interpretation of data and writing the paper. The authors confirm that the funding does not compete with the PLOS ONE policies on sharing data and materials. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: IS MW AB KK. Data curation: IS. Formal analysis: IS. Funding acquisition: KK MW. Investigation: IS. Methodology: IS MW AB KK. Project administration: IS KK MW. Resources: KK. Supervision: KK AB. Validation: KK. Writing – original draft: IS. Writing – review & editing: IS MW AB KK.