1. Cormac Walsh is Researcher at the Carl von Ossietzky University of Oldenburg, School of Computing Science, Business Administration, Economics and Law – Ecological Economics, Ammerländer Heerstr. 114–18 Oldenburg, Oldenburg 26129, Germany;
2. Hendrike Clouting is Regional Planner at District of Lüneburg, Regional and Land Use Planning, Lüneburg, Niedersachsen 21335, Germany;
3. Aline Kühl-Stenzel is Marine Policy Officer at Naturschutzbund Deutschland e.V., NABU Federal Office c/o NABU Hamburg, Klaus-Groth-Strasse 21, 20535 Hamburg, Germany;
4. Henriette Schwemmer is Researcher at the Federation of German Avifaunists (DDA), Büsum, Dachverband Deutscher Avifaunisten, An den Speichern 2, Münster 48157, Germany; email: (corresponding author) .