Family Guans, Chachalacas, Curassows (Cracidae)

Endangered

Red-billed Curassow (Crax blumenbachii)


Taxonomy

French: Hocco de Blumenbach German: Rotschnabelhokko Spanish: Pavón piquirrojo
Taxonomy:

Crax blumenbachii

Spix

, 1825,

state of Rio de Janeiro, Brazil

.

In the past, the sexes were thought to constitute two different species; male was described as C. rubrirostris. A close relationship between present species and C. globulosa has been claimed, especially because of very similar male plumages, and genetic data indicate that the two are each other’s closest relatives#R; nevertheless, vocal differences between them are considerable. Monotypic.

Distribution:

SE Brazil from S Bahia S to NE Rio de Janeiro (formerly fairly widespread, but currently restricted to a few scattered forest patches in range). One record from Bolivia repeatedly claimed to refer to present species, but erroneously.

Descriptive notes

c. 84 cm; c. 3500 g. Male has low knob on bill, but well-developed wattles; crest longer than that of wholly allopatric C. globulosa. Iris of adult male chestnut, of... read more

Voice

Booming song (by male) heard Jul–Oct or later in Espírito Santo, and occasionally all... read more

Habitat

Tall, humid primary forest, with rich undergrowth; also visits areas with lower vegetation, e.g.... read more

Food and feeding

Fruits, usually fallen from trees and taken on ground, but also picked off bushes and trees. Fruits can be hard and green or ripe; range... read more

Breeding

Apparent variation in laying date from year to year, probably due to an extended breeding season each year; chicks recorded in Oct, Jan and... read more

Movements

No information available; presumably sedentary.

Status and conservation

ENDANGERED. Restricted-range species: present in Atlantic Forest Lowlands EBA. CITES I. Populations largely protected, but vigilance needed. Seems to have been relatively... read more

Recommended citation

del Hoyo, J., Kirwan, G.M. & Sharpe, C.J. (2018). Red-billed Curassow (Crax blumenbachii). 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 https://www.hbw.com/node/53317 on 21 July 2018).