Common Black-HawkButeogallus anthracinus
20-23" (51-58 cm). A stocky black bird of prey with broad wings and a broad white band across the tail; cere and legs yellow, latter visible in flight. When soaring, holds its wings flat and somewhat resembles Black Vulture; light spot visible on underwing at base of primaries. Immatures similar in size and shape but dark brown with tawny barring above, pale buff with streaks below, tail dark with several pale bands.