Red-billed curassow  (Crax blumenbachii)

This typically-coloured curassow, with glossy black plumage, white vent, and long black curly crest, can be identified by the conspicuous reddish-orange knob above the bill and large wattles below, for which it earns its common name (4) (5). In the female, the white areas of the male are replaced with deep cinnamon-rufous, the black crest is shorter and barred with white, the wings are vermiculated with rufous, and the bill lacks the distinctive red wattles of the male (4) (5). Calls include a low woop when foraging, and eeee-oooo when disturbed (4).