Funding for this research was provided by:
National Natural Science Foundation of China (41471347)
Received: 13 June 2020
Accepted: 11 August 2020
First Online: 18 August 2020
Ethics approval and consent to participate
: Capturing and deploying GPS transmitters on migratory birds was approved by the Jiangxi Provincial Forestry Bureau (reference number: Ganlinban 201514 and 201570) and the Animal Ethics Committee at Tsinghua University (reference number: IACUC15- SYL1).
: Not applicable.
: The authors declare that they have no competing interests.