Family Guans, Chachalacas, Curassows (Cracidae)

Least Concern

Nocturnal Curassow (Nothocrax urumutum)


French: Hocco nocturne German: Rothokko Spanish: Paují nocturno

Crax urumutum


, 1825,

Rio Negro, Brazil


Formerly included, together with all other curassows, in Crax, but certainly distinct in size and plumage; recent genetic data provide strong support for separate generic placement#R. Monotypic.


Upper and middle Amazonia in S Venezuela (S Amazonas), SE Colombia, E Ecuador, NE Peru (Amazonas and Loreto), and W & C Brazil E as far as Madeira–Tapajós interfluvium in W Pará#R and S to Rondônia.

Descriptive notes

50–57·5 cm; one bird 1250 g. Unmistakable. Differs from all other curassows by smaller size and cryptic (mainly rufous or chestnut) plumage in both sexes, with... read more


Vocalizations only given nocturnally, usually on clear but dark nights during dry weather, less... read more


Dense humid forest, in terra firme forest and also permanently or seasonally flooded... read more

Food and feeding

Diet apparently entirely vegetarian, but dataset tiny. Forages, at least partially, during daytime, probably mainly in first few hours... read more


Heard Oct and Jan–Feb and one female laying in Oct, in upper R Negro, Colombia; female incubating in Jan in NE Peru, where species... read more


No information available; presumably sedentary.

Status and conservation

Not globally threatened (Least Concern). Status poorly known, but species probably reasonably secure, as parts of large range in W Amazonia still in good state of... read more

Recommended citation

del Hoyo, J. & Kirwan, G.M. (2020). Nocturnal Curassow (Nothocrax urumutum). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 21 February 2020).