Funding for this research was provided by:
Bundesamt für Naturschutz (FKZ 3510 860 1000)
Niedersächsische Wattenmeerstiftung (18/10)
Text and Data Mining valid from 2019-08-02
Received: 5 February 2019
Accepted: 3 July 2019
First Online: 2 August 2019
Ethics approval and consent to participate
: The tracking study was approved by the animal care and ethical committee at the Niedersächsisches Landesamt für Verbraucherschutz und Lebensmittelsicherheit (LAVES), Oldenburg, Germany (# 33-42502-04-10/0307). Catching and ringing were carried out under the license of the Institute of Avian Research, Wilhelmshaven, Germany. The national park administration of Lower Saxony, Wilhelmshaven, Germany, gave the permission to catch birds at high-tide roosts within the National Park.
: Not applicable.
: The authors declare that they have no competing interests. The funders had no influence on the study design, data collection and analysis, decision to publish, or preparation of the manuscript.