Blue-billed Curassow

The blue-billed curassow is 82.5 to 92.5 cm (2.7 to 3.0 ft) long and weighs 3.2 to 3.6 kg (7.1 to 7.9 lb). It is the only curassow with a blue cere and wattle, the latter found only on the male. Males are mostly black with a white vent and tail tip. Females are also mostly black but their lower belly and vent are rufous. They have fine white barring on the wings and tail, and a rare "barred" morph also has barring on the breast and belly. Both sexes have an erectile crest, the male's black and the female's black and white.

The blue-billed curassow is found only in northern Colombia. Its range used to stretch 106,700-square-kilometers; it now has a highly fragmented range, with small populations between La Guajira and Magdalena Departments south to Antioquia and Boyacá Departments with 2,090-square-kilometers. It inhabits undisturbed forest in the tropical and upper tropical zones, mostly from near sea level to 600 m (2,000 ft) but at least formerly as high as 1,200 m (3,900 ft). The Serranía de las Quinchas area in the Magdalena Valley is home to the last viable population of blue-billed curassows.

The blue-billed curassow mainly feeds on the ground. Its diet has not been extensively studied but it is known to include fruits, worms, and insects. It also takes in sand and small stones as digestive aids.