Current view: Data table and detailed info
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.
IUCN Red List criteria met and history
Red List criteria met
Red List history
Migratory status |
not a migrant |
Forest dependency |
high |
Land-mass type |
continent
|
Average mass |
- |
Population justification: National population estimates include 200 individuals on isla Mocagua and 200-250 individuals on islands in río Caquetá in Colombia (Renjifo et al. 2014), less than 1,000 individuals in Brazil (ICMBio 2018), less than 130 individuals in Bolivia (Armonía Bolivia 2022), and 250-500 individuals in Peru (SERFOR 2018). This equates to up to 1,780-2,080 individuals across the range, which is equivalent to roughly 1,180-1,380 mature individuals.
In its presumed stronghold near the Mamirauá Sustainable Development Reserve in Brazil, densities of c. 0.6 individuals/km2 could be observed (Begazo and Valqui 1998, ICMBio 2018). Under the assumption that this density is representative for the global range, and further assuming that 50% of the mapped range is occupied to account for its strict habitat requirements (i.e. c.4,000 km2), an extrapolation across the range results in a population of 2,400 individuals. This roughly equates to 1,600 mature individuals. To account for uncertainty and the differences in the above methods of estimating the global population, it is here placed in the band 1,000-2,499 mature individuals.
A population genetic study of the population along the Peruvian-Colombian border found significant genetic structuring across a small area, suggesting reduced movement and gene flow and thus the existence of several very small subpopulations (Alvarez-Prada and Ruiz-García 2015).
Trend justification: Formerly widespread across a large area, this species has declined dramatically, mainly as a consequence of hunting and habitat loss, and is now restricted to scattered, disjunct localities. In parts of the range it has reportedly suffered local extinctions (del Hoyo et al. 2020).
While declines have certainly been drastic in the past, the population now shows signs of recovery locally in areas where hunting pressure has been greatly reduced through awareness and education campaigns, e.g. in Bolivia (Hennessey 1999, Armonía Bolivia 2022). Hunting is however ongoing in other areas and likely causing an ongoing population decline (Renjifo et al. 2014, ICMBio 2018, SERFOR 2018). Habitat loss and degradation may further aggravate the population decline; however, tree cover loss within the known range is low (2% over the past 20 years; Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). The current impact of these threats on the population size is not known, and as such the overall rate of population decline is unquantified.
Country/territory distribution
Important Bird and Biodiversity Areas (IBA)
Recommended citation
BirdLife International (2024) Species factsheet: Wattled Curassow Crax globulosa. Downloaded from
https://datazone.birdlife.org/species/factsheet/wattled-curassow-crax-globulosa on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.