Taxonomic note
Cyanocorax hafferi (del Hoyo and Collar 2016) is recognized as a species following work by Cohn-Haft et al. (2013).
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2024 | Near Threatened | A3c+4c |
2016 | Near Threatened | B2b(ii) |
2012 | Not Recognised | |
2008 | Not Recognised | |
2004 | Not Recognised | |
2000 | Not Recognised | |
1994 | Not Recognised | |
1988 | Not Recognised |
Migratory status | not a migrant | Forest dependency | high |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 246,000 km2 | |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 26000 mature individuals | medium | estimated | 2008 |
Population trend | decreasing | - | inferred | 2017-2035 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
Generation length | 5.91 years | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: Based on observed densities and extrapolated over the area of available habitat, the population was estimated at roughly 26,000 mature individuals (Santos Junior 2008, Aleixo et al. 2023).
Trend justification: The population trend has not been investigated, but due to the species' highly specific habitat requirements and intolerance of degradation, declines are inferred on the basis of ongoing habitat destruction in the Amazon basin.
There is no quantification of the rate of conversion of campina habitats, and therefore the rate of tree cover loss is here used as a proxy to derive a value for overall habitat loss and population declines. Within the range, 5% of tree cover has been lost over the past three generations (17.7 years), since 2017 this has been accelerating to a rate equivalent to 8% over three generations (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). Notably, hotspots of deforestation are located in close proximity to campinas, in particular in the southern part of the range (cf. Cohn-Haft et al. 2013, Global Forest Watch 2023); consequently, the rate of destruction and degradation of campinas may at least be equivalent to the rate of tree cover loss. In view of the species' strict dependence on campina edges and its high sensitivity to habitat disturbance and loss, population declines are likely faster than habitat loss suggests. Tentatively, population declines are here placed in the band 10-19% over the past three generations, and from 2017 onward accelerating to 20-29% over three generations into the future.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Brazil | extant | native | yes |
Country/Territory | IBA Name |
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Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Lowland | suitable | resident |
Savanna | Moist | major | resident |
Shrubland | Subtropical/Tropical Moist | major | resident |
Altitude | 100 - 250 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Agriculture & aquaculture | Livestock farming & ranching - Agro-industry grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Agriculture & aquaculture | Livestock farming & ranching - Small-holder grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Natural system modifications | Dams & water management/use - Abstraction of surface water (agricultural use) | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Natural system modifications | Dams & water management/use - Dams (size unknown) | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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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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Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Transportation & service corridors | Utility & service lines | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Recommended citation
BirdLife International (2024) Species factsheet: Campina Jay Cyanocorax hafferi. Downloaded from
https://datazone.birdlife.org/species/factsheet/campina-jay-cyanocorax-hafferi on 25/12/2024.
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 25/12/2024.