Taxonomic note
Macronus ptilosus (del Hoyo and Collar 2016) was previously listed as Macronous ptilosus.
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.
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 |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2016 | Near Threatened | A2c+3c+4c |
2013 | Near Threatened | A2c+3c+4c |
2012 | Near Threatened | A2c+3c+4c |
2008 | Near Threatened | A2c; A3c; A4c |
2004 | Near Threatened | |
2000 | Lower Risk/Near Threatened | |
1994 | Lower Risk/Least Concern | |
1988 | Lower Risk/Least Concern |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type |
continent shelf island |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 3,590,000 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | unknown | - | - | - |
Population trend | decreasing | poor | inferred | 1998-2008 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
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 | 3.9 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as generally scarce to fairly common (del Hoyo et al. 2007).
Trend justification: This species is suspected to be experiencing a moderately rapid population decline owing to on-going habitat loss and degradation throughout its range.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Brunei | extant | native | yes | |||
Indonesia | extant | native | yes | |||
Malaysia | extant | native | yes | |||
Singapore | extinct | native | yes | |||
Thailand | extant | native | yes |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Forest | Subtropical/Tropical Swamp | suitable | resident |
Altitude | 0 - 700 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 | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible 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%) | Negligible declines | Low Impact: 4 | ||||||
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Recommended citation
BirdLife International (2024) Species factsheet: Macronus ptilosus. Downloaded from
https://datazone.birdlife.org/species/factsheet/fluffy-backed-tit-babbler-macronus-ptilosus on 19/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org on 19/03/2024.