Kürten, Nathalie http://orcid.org/0000-0001-6538-6205
Piening, Kristin
Vedder, Oscar http://orcid.org/0000-0003-4689-8568
Funding for this research was provided by:
Institut für Vogelforschung - Vogelwarte Helgoland
Article History
Received: 11 November 2020
Revised: 11 February 2021
Accepted: 23 February 2021
First Online: 12 March 2021
Declarations
:
: We declare no conflicts of interest.
: All procedures complied with current German law.