Family Guans, Chachalacas, Curassows (Cracidae)

Critically Endangered

Blue-billed Curassow (Crax alberti)


French: Hocco d’Albert German: Blaulappenhokko Spanish: Pavón piquiazul

Crax Alberti


, 1850,

based on a cagebird of unknown origin


Formerly included C. daubentoni as a race. Form C. annulata was described from a female of the rare barred morph and an immature male of present species. Has hybridized in captivity with C. rubra and C. fasciolata, producing birds with green cere; also with C. globulosa, Penelope pileata and Mitu tuberosum. Form C. viridirostris, with green cere, thought to have been described from an abnormal specimen of present species or from hybrid between it and another member of genus, now shown by mtDNA-sampling to be an aberrant C. daubentoni or a hybrid between latter and another Crax#R#R; on the other hand, the morphologically similar specimen described as C. estudilloi, from an aviary bird in Mexico reputedly acquired in Bolivia, was found to be an aberrant C. alberti, although it may have been the offspring of a mixed pairing between a female of present species and a congener#R#R. Monotypic.


N Colombia; currently survives only in a few remnant forest patches from La Guajira and Magdalena S to Antioquia and W Boyacá#R.

Descriptive notes

82·5–92·5 cm. Only curassow with blue cere and wattles; male lacks knob on bill, having at most slight swelling. Rare barred morph of female has more... read more


Males boom from the ground, each song phrase being a 4–5-syllable series of deep notes... read more


Humid undisturbed forest in lowlands and foothills and on lower mountain slopes in tropical and... read more

Food and feeding

Very little information available on diet, but takes tough-shelled Fabaceae fruits and has also been observed consuming worms and insects;... read more


In NE Antioquia, season mid Dec to early Mar and adults with chicks seen Mar–Aug; young recorded in Jul in environs of Santa Marta... read more


No information available; presumably sedentary.

Status and conservation

CRITICALLY ENDANGERED. Total population currently estimated at 150–700 individuals. Although never known to be common, species has suffered a serious decline and is now... read more

Recommended citation

del Hoyo, J. & Kirwan, G.M. (2019). Blue-billed Curassow (Crax alberti). 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 16 December 2019).