Kubacka, Justyna http://orcid.org/0000-0003-1211-8324
Podmokła, Edyta http://orcid.org/0000-0002-7270-4838
Korb, Judith http://orcid.org/0000-0001-9577-9376
Dubiec, Anna http://orcid.org/0000-0003-4007-5915
Funding for this research was provided by:
Narodowe Centrum Nauki (2011/03/N/NZ8/02106, 2016/20/S/NZ8/00434)
British Ornithologists’ Union (Career Development Bursary (2014))
Article History
Received: 22 August 2019
Revised: 27 January 2020
Accepted: 3 February 2020
First Online: 5 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All applicable international, national, and institutional guidelines for the care and use of animals were followed. All procedures performed involving animals were in accordance with the ethical standards of the institution at which the studies were conducted. The protocol and procedure of blood-sampling were ethically reviewed and approved of by the 1st Ethical Committee in Lublin, Poland (decision no. 17/2014 of 25 April 2014). The birds were caught and ringed under permissions from the Polish Ministry of the Environment (decision no. DLP-III-4102343125042/14/md and ringing permit no. 144/2014), the Biebrza National Park, the Poleski National Park, and the Regional Directorate for Environmental Protection in Lublin (permits no. WPN.6401.104.2014.MPR and WPN.6205.1.23.2014.MO), as required by the Polish Nature Protection Act.