Biol. Lett. 15, 20190380. (Published online 2 October 2019) (doi:10.1098/rsbl.2019.0380)
We would like to add the following acknowledgements statement to the publication:
Many thanks to Richard Woods for acoustic advice and help with statistics and to Sophie Darnton for coding videos. We are very grateful to the Gluyas family and staff at Pencoose Farm and to Odette Eddy and the people of Stithians where this work was conducted. We are grateful to Ally Phillimore for statistical advice and to three anonymous reviewers for their valuable input.