Funding for this research was provided by:
Austrian Science Fund (P21489-B17)
Bundesministerium f?r Bildung, Wissenschaft und Forschung (SPA-03/005, SPA-06/155)
Text and Data Mining valid from 2019-02-20
Received: 7 July 2018
Revised: 15 January 2019
Accepted: 31 January 2019
First Online: 20 February 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The permission to keep Greylag Geese for scientific purposes according to §16 of the Austrian Animal Experiments Act (Federal Law Gazette No. 114/2012) was issued by the Austrian Federal Ministry of Science, Research and Economy (BMWFW) under license number BMWFW-66.006/0011-WF/II/3b/2014. No additional approvals were required, because the study was non-invasive, and did not fall under the Austrian Animal Experiments Act §2.