Funding for this research was provided by:
U.S. Department of Energy (DE-EM0004391)
National Geographic Society Research and Exploration
Received: 1 June 2020
Accepted: 14 October 2020
First Online: 28 October 2020
Change Date: 8 February 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s13071-020-04508-1
Ethics approval and consent to participate
: This study was carried out in accordance with bird sampling permits granted by the Forest Departments of Kerala and Tamil Nadu, and institutional animal ethics clearance from the National Centre for Biological Sciences, Bangalore, India.
: Not applicable.
: The authors declare that they have no competing interests.