About the Authors

Alexander Royan

* Email: axr196@bham.ac.uk (AR); j.p.sadler@bham.ac.uk (JPS)

Affiliation School of Geography, Earth & Environmental Sciences, College of Life & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom

David M. Hannah

Affiliation School of Geography, Earth & Environmental Sciences, College of Life & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom

S. James Reynolds

Affiliation Centre for Ornithology, School of Biosciences, College of Life & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom

David G. Noble

Affiliation British Trust for Ornithology, The Nunnery, Thetford, Norfolk, United Kingdom

Jonathan P. Sadler

* Email: axr196@bham.ac.uk (AR); j.p.sadler@bham.ac.uk (JPS)

Affiliations School of Geography, Earth & Environmental Sciences, College of Life & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom, Centre for Ornithology, School of Biosciences, College of Life & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AR DMH SJR DGN JPS. Performed the experiments: AR. Analyzed the data: AR. Wrote the manuscript: AR DMH SJR DGN JPS.