www.uwb.edu.pl

University of Bialystok

Faculty of Biology


www.lasy.gov.pl

Regional Directorate of State Forests in Białystok


https://olsztyn.pan.pl

Polish Academy of Sciences

Branch in Olsztyn and Białystok


www.iucn.org

International Union for Conservation of Nature

Grouse Group of the IUCN-SSC Galliformes Specialist Group