Wellbrock, Arndt H. J.
Witte, Klaudia http://orcid.org/0000-0002-2812-9936
Funding for this research was provided by:
Universität Siegen
Ethologische Gesellschaft
Universität Siegen
Article History
Received: 14 September 2022
Accepted: 22 November 2022
First Online: 8 December 2022
Declarations
:
: Field studies were conducted in accordance with the German Animal Welfare Act (TierSchG) and the Federal Nature Conservation Act (BNatSchG). Capture, handling and tagging of birds were done under the permission from the State Office of Nature Conservation in North Rhine-Westphalia (Landesamt für Natur, Umwelt- und Verbraucherschutz Nordrhein-Westfalen, reference numbers: 9.93.2.10.41.07.095 (2007–2010), 8.87-51.05.20.11.007 (2011–2014), 84-02.04.2015A.161 (2015–2020). The ringing centre at the Institute of Avian Research ‘Vogelwarte Helgoland’ in Wilhelmshaven issued ringing license.
: All authors agreed to be held accountable for the content therein and approve of the final version of the manuscript for publication.
: The authors declare that they have no competing interests.