Text and Data Mining valid from 2019-04-11
Received: 1 December 2018
Revised: 3 April 2019
Accepted: 6 April 2019
First Online: 11 April 2019
Compliance with ethical standards
: All authors declare that there is no conflict of interest.
: This study was approved by the Ethical Review Group at the University of Exeter (no. 2012/533). Squirrels were treated in accordance with Association for the Study of Animal Behaviour guidelines on animal welfare and UK law.