It has a wingspan of 110 cm. It has a light and dark phase on its faethers. Its nests are made ​​in the crowns of large trees in old isolated forests, because it is very sensitive to disturbance. The couple has a caracteristic wedding flight and incubates two eggs. It eats reptiles, birds and small mammals. It is very beautiful for observation when it hunts small birds because it is very quick and skillful. It is also very rare. In Demir Kapija only 2-3 pairss of this very rare, very beautiful for observation, but very mysterious kind are nesting.