Taxonomic note
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.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | D1 |
Year | Category | Criteria |
---|---|---|
2016 | Near Threatened | D1 |
2012 | Near Threatened | D1 |
2008 | Near Threatened | D1 |
2004 | Near Threatened | |
2000 | Vulnerable | |
1996 | Data Deficient | |
1994 | Data Deficient | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | Does not normally occur in forest |
Land mass type |
Land-mass type - continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 103,000 | medium |
Number of locations | 9 | - |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 600-1700 | poor | estimated | 2003 |
Population trend | Decreasing | suspected | - | |
Decline (3 years/1 generation past) | - | - | - | |
Decline (5 years/1 generation past) | - | - | - | |
Decline (10 years/1 generation past) | - | - | - | |
Decline (10 years/3 generation future) | - | - | - | |
Decline (10 years/3 generation past and future) | - | - | - | |
Number of subpopulations | 2-100 | - | - | - |
Percentage in largest subpopulation | - | - | - | |
Generation length (yrs) | 3.5 | - | - | - |
Population justification: Fontaine (2003) suggests its population is 'not more than a few thousand individuals', and so it is tentatively placed in the band 1,000-2,499 individuals here. This is equivalent to 667-1,666 mature individuals, rounded here to 600-1,700 mature individuals.
Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Cameroon | N | Extant | Yes | |||
Central African Republic | N | Extant | Yes | |||
Gabon | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Central African Republic | Dzanga-Ndoki National Park |
Cameroon | Nki |
Cameroon | Lobéké National Park |
Gabon | Lopé Faunal Reserve |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | major | resident |
Altitude | 400 - 800 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 | ||||
Future | Majority (50-90%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Future | Majority (50-90%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Recommended citation
BirdLife International (2022) Species factsheet: Bradypterus grandis. 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.