Funding for this research was provided by:
Narodowy Fundusz Ochrony Środowiska i Gospodarki Wodnej (LIFE15 NAT/PL/000819)
Received: 31 December 2020
Accepted: 6 September 2021
First Online: 15 September 2021
: Catching and tagging of Ospreys were carried out under the license of General Inspectorate for Environmental Protection—DZP.WG.6401.03.109.2017.dł.
: Not applicable.
: The authors declare that they have no competing interests.