Appearance
The nocturnal curassow is the smallest curassow at 50 to 57.5 cm long. One bird weighed 1,250 g. It is also unique with its mostly rufous and chestnut plumage, as other curassows are mostly black. Its crest is flat and blackish, its ventral area buffy, and the tips of its tail feathers are paler than the rest. Its brownish orange eye is surrounded by bare skin, greenish yellow above and black below. The bill is reddish orange and the legs gray.Distribution
The nocturnal curassow is found in middle and upper Amazonia, from far southern Venezuela, southeastern Colombia, eastern Ecuador, and northeastern Peru into western and central Brazil. It inhabits ''terra firme'' forest and flooded forests.Status
The IUCN has assessed the nocturnal curassow as being of Least Concern. Much of its range in western Amazonia remains intact and its mostly nocturnal habits apparently lead to less hunting pressure than other Cracids experience.Behavior
Belying its name, the nocturnal curassow is active in daylight as well as night and twilight, though it sings only at night.Habitat
It inhabits ''terra firme'' forest and flooded forests . It favors low lying, gentle, terrain, often near blackwater rivers. It is typically found below 850 m but has been recorded as high as about 1,500 m in Ecuador.Reproduction
The nocturnal curassow's breeding season has not been determined, but breeding activity has been noted between October and February. It makes a large loosely woven nest from sticks and palm leaves lined with twigs and dried leaves. Nests have been found high in trees and vines and also on stumps and logs near the ground. The clutch size is two eggs.Food
The nocturnal curassow forages singly or in groups of up to four birds, at dawn, dusk, and the few hours after or before them. It feeds on the ground, apparently entirely on vegetable matter though its diet has not been extensively studied.References:
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