Profil taxonu
Odkazy a literatura
Gill F., Donsker D. & Rasmussen P. (eds): IOC World Bird List 11.1 [http://www.worldbirdnames.org/] [jako Tetraogallus caspius caspius (Gmelin, SG, 1784)]Datum citace: 22. duben 2021
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [jako Tetraogallus caspius caspius]Datum citace: 7. duben 2013