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.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
C2a(i) | A2c+3c+4c; C2a(i); D | A2c+3c+4c; C2a(i); D1+2 |
Year | Category | Criteria |
---|---|---|
2021 | Critically Endangered | C2a(i) |
2018 | Critically Endangered | C2a(i) |
2016 | Critically Endangered | C2a(i) |
2015 | Critically Endangered | C2a(i) |
2013 | Critically Endangered | C2a(i) |
2012 | Endangered | B1ab(i,ii,iii,iv,v) |
2008 | Endangered | B1a+b(i,ii,iii,iv,v) |
2007 | Endangered | |
2006 | Endangered | |
2004 | Endangered | |
2000 | Endangered | |
1996 | Endangered | |
1994 | Endangered | |
1988 | Threatened |
Migratory status | nomadic | Forest dependency | does not normally occur in forest |
Land-mass type |
continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 200,000 km2 | medium |
Extent of Occurrence (non-breeding) | 183,000 km2 | medium |
Number of locations | 2 | - |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 50-249 mature individuals | good | estimated | 2020 |
Population trend | decreasing | medium | inferred | 2012-2022 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 50-79% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 50-79% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 50-79% | - | - | - |
Generation length | 3.1 years | - | - | - |
Number of subpopulations | 2 | - | - | - |
Population justification: The population in South Africa was previously estimated to be 235 birds, with at least a further 210-215 pairs in Ethiopia (A. Shimelis in litt. 1998), i.e. probably 700 mature individuals in total. The species can only be reliably surveyed in the breeding season in Ethiopia, but surveys risk disturbing nesting and thus have been avoided in the past (Y. D. Adebe in litt. 2013). Nevertheless, the most recent surveys by Colyn et al. (2020a, b) using cameras and acoustic monitoring yielded upper-limit population densities of 1 pair/5.8 ha in Ethiopia, and 1 pair in 6.7 ha in South Africa. This produced population estimates of 55 pairs in Ethiopia, and c.58 pairs in South Africa, producing a global population estimate of c.226 mature individuals, placed here in the band 50-249 mature individuals.
Trend justification: This species's population is inferred to be decreasing very rapidly in line with levels of disturbance, habitat loss and degradation in Ethiopia and South Africa (Atkinson et al. 1996; Taylor and van Perlo 1998; P. B. Taylor in litt. 1999; De Smidt 2003; Taylor and Grundling 2003; M. Drummond in litt. 2005; Y. Adebe, M. Ewnetu, G. Gebreselassie and H. Smit-Robinson in litt. 2013; Colyn et al. 2020a, c). The rate of decline is therefore suspected to fall in the 50-79% band.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Ethiopia | extant | native | yes | |||
South Africa | extant | native | yes | |||
Zambia | extant | vagrant | ||||
Zimbabwe | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Ethiopia | Berga floodplain |
Ethiopia | Sululta plain |
South Africa | Franklin Vlei |
South Africa | Grasslands |
South Africa | Greater Ingwangwana River |
South Africa | Ingula Nature Reserve |
South Africa | Murphy's Rust |
South Africa | Penny Park |
South Africa | Steenkampsberg |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Grassland | Subtropical/Tropical High Altitude | major | non-breeding |
Grassland | Subtropical/Tropical High Altitude | major | breeding |
Altitude | 1700 - 2600 m | Occasional altitudinal limits | (min) 1100 m |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Scale Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
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Agriculture & aquaculture | Livestock farming & ranching - Scale Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
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Agriculture & aquaculture | Wood & pulp plantations - Scale Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Biological resource use | Gathering terrestrial plants - Unintentional effects (species is not the target) | 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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Energy production & mining | Mining & quarrying | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Human intrusions & disturbance | Work & other activities | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Unspecified species | 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%) | Negligible declines | Low Impact: 4 | ||||||
|
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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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Other options | Other threat | Timing | Scope | Severity | Impact | ||||
Ongoing | Whole (>90%) | Unknown | Unknown | ||||||
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Pollution | Agricultural & forestry effluents - Soil erosion, sedimentation | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
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Recommended citation
BirdLife International (2024) Species factsheet: White-winged Flufftail Sarothrura ayresi. Downloaded from
https://datazone.birdlife.org/species/factsheet/white-winged-flufftail-sarothrura-ayresi on 22/11/2024.
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 22/11/2024.