Kumar, Neeraj http://orcid.org/0000-0003-0769-1564
Lohrentz, Anja
Gahr, Manfred
Groothuis, Ton G. G.
Funding for this research was provided by:
University of Groningen Max Planck Institute for Ornithology
Article History
Received: 19 September 2018
Accepted: 3 July 2019
First Online: 8 August 2019
Competing Interests
: The authors declare no competing interests.