Bonelli's Eagle

Bonelli's Eagle is a medium-sized eagle with contrasting plumage and a characteristic silhouette. The length of the tail is equivalent to the width of the wing, or even slightly larger, resembling the Booted Eagle, but in flight, the small head and long tail are more reminiscent of the Eurasian Hobby, which can cause confusion in poor lighting.
The upper parts of an adult are medium brown with darker remiges, but what can be clearly seen in flight is the light patch in the middle of the back.
When viewed from below, the contrast between the wings and body is striking and prevents confusion. In fact, the body is white with more or less visible dark streaks. The coverts, on the other hand, are dark and even black for the larger ones. The remiges are gray, with the primaries slightly paler, but this accentuates the dark underside of the wing. The tail is gray like the hands with a clear black terminal bar.
When perched facing forward, the pale plumage of the body is especially noticeable, including the trousers and tarsus, the iris and the robustness of the beak contrasting with the delicacy of the head.
The juvenile is very different from the adult. When viewed from below, the body and wing coverts are uniformly reddish. The remiges are pale with 6 black fingers at the end of the hand. The tail is also pale and without a black terminal bar. The bird looks more like a Common Buzzard that has no dark spots at the wrist and abdomen.