Occurences of the Cinereous Vulture (Aegypius monachus) in the Eastern Rhodopes, Bulgaria

by Volen S. Arkumarev, Dobromir D. Dobrev, Anton A. Stamenov, Vanya A. Angelova, Atanas G. Delchev, Vera A. Dyulgerska, Sylvia Zakkak, Eleftherios Kapsalis, Stoycho A. Stoychev
Published 2020-12-01