Data Zone
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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | B1ab(i,ii,iii,v);C2a(i);D | B1ab(i,ii,iii,v);C2a(i);D1+2 |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Endangered | B1ab(i,ii,iii,v);C2a(i);D |
| 2013 | Endangered | B1ab(i,ii,iii,v);C2a(i);D |
| 2012 | Endangered | B1ab(i,ii,iii,v);C2a(i);D |
| 2008 | Endangered | B1a+b(i,ii,iii,v); C2a(i); D1 |
| 2004 | Endangered | |
| 2000 | Endangered | |
| 1996 | Critically Endangered | |
| 1994 | Critically Endangered | |
| 1988 | Threatened |
| Migratory status | not a migrant | Forest dependency | Medium |
| Land mass type |
Land-mass type - continent |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 77,400 | medium |
| Number of locations | 4 | - |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 130-170 | medium | estimated | 2003 |
| Population trend | Decreasing | poor | estimated | - |
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | 1-9 | - | - | - |
| Decline (10 years/3 generation past and future) | - | - | - | |
| Number of subpopulations | 2-100 | - | - | - |
| Percentage in largest subpopulation | - | - | - | |
| Generation length (yrs) | 11.5 | - | - | - |
Population justification: Minimum estimates of the species's population are 60 birds in Sooretama Biological Reserve, 100 in Rio Doce State Park and 35 in Descobrimento National Park, and c.20 individuals in the Michelin Ecological Reserve, Bahia (K. M. Flesher in litt. 2011) with recent sightings of small numbers at five other sites in 2003. It is likely to number 200-249 individuals in total, roughly equating to 130-170 mature individuals.
Trend justification: Although the population is expected to be increasing in some locations (mainly Michelin Ecological Reserve, Bahia [K. M. Flesher in litt. 2012]), overall a population decline of 1-9% over the last ten years is suspected based on rates of habitat loss and degradation, and hunting pressure.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Brazil | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Brazil | Parque Estadual do Rio Doce |
| Brazil | Baixo-Sul |
| Brazil | Sooretama / Linhares |
| Brazil | Una |
| Brazil | Parque Nacional de Monte Pascoal |
| Brazil | Parque Nacional do Descobrimento |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | marginal | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Forest | Subtropical/Tropical Swamp | marginal | resident |
| Altitude | 0 - 500 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Agriculture & aquaculture | Livestock farming & ranching - Agro-industry grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
| Past, Unlikely to Return | Whole (>90%) | Slow, Significant Declines | Past Impact | ||||||
|
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| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
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| Residential & commercial development | Housing & urban areas | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Recommended citation
BirdLife International (2022) Species factsheet: Crax blumenbachii. Downloaded from
http://www.birdlife.org on 30/06/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 30/06/2022.
