Cassin's Hawk-Eagle is a forest eagle marked in black and white, with a short crest. In humid tropical forest it is secretive and rarely seen soaring.
It is black above and very white below, except for black flanks. In flight, a large black patch shows across the front of the underwing, and a short crest is visible on the head.
It lives in humid forest, is secretive, and is rarely seen soaring. Its calls include a loud repeated note and a simple rising whistle.
An extinction-risk assessment has not been added yet.