Grey-backed Hawk Pseudastur occidentalis

An endangered raptor found only in western Ecuador and immediately adjacent parts of Peru. It has white underparts, dark gray back and wings, and gray streaks on the head. Its tail is white with a thick black band near the tip that is especially evident in flight. Restricted to areas where extensive forest cover remains. Prefers dry and semi-humid areas; not normally present in the wetter forests of northwestern Ecuador, but may occasionally wander into them.