About Crax alector Linnaeus, 1766
The black curassow (Crax alector Linnaeus, 1766) is a large bird, reaching approximately 900 millimetres (35 inches) in length. The male has black upper parts with a glossy purplish sheen, and a small, unnoticeable black crest. The skin at the base of its grey beak is yellow or orange, and it lacks knobs and wattles. The male's underparts are white. The female looks similar to the male, but its crest has white barring. Juvenile black curassows are black, with barring and mottling in reddish-brown and reddish-buff.