1. Aristov, N.Y. 1866. Promyshlennost drevnej Rusi [Industry of ancient Rus]. Unpublished Master’s thesis, Saint Petersburg Imperial University. [Russian].
2. Show me your hawk, I’ll tell you who you are;Bartosiewicz,2012
3. Baryshnikov, G., Potapova, O. 1988. Middle Palaeolithic birds of the Crimea. Proc. Zool. Inst. Acad. Sci. USSR, 182, 40–64. [Russian].
4. Palaeolithic birds of the Crimean Peninsula, USSR. Nat;Baryshnikov;Hist. Mus. Los Angeles County Sci. Ser.,1992
5. Bashta, A.-T.V. 2012. Current state and quantitative dynamics of the Eagle owl Bubo bubo Linnaeus, 1758 populations in Ukraine. Sci. Princ. Biodiv. Conserv., 3 (1), 125–150. [Ukrainian].