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 |
---|---|---|
2023 | Near Threatened | A2c+3c+4c |
2016 | 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/Near Threatened | |
1988 | Near Threatened |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 448,000 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | unknown | - | - | - |
Population trend | decreasing | poor | inferred | 2015-2028 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 15-25% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 15-25% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 15-25% | - | - | - |
Generation length | 4.2 years | - | - | - |
Population justification: The global population size of this species has not been quantified, but c.75,000 km2 of forest remains in its range (per Global Forest Watch 2022). Even accounting for descriptions of its abundance as local or rare (del Hoyo et al. 2005, Eaton et al. 2021), the population size is therefore unlikely to be especially small, even if only a portion of forest in its range is occupied.
Trend justification: This species is dependent on lowland, good-quality forest (Eaton et al. 2021, J. Eaton in litt. 2022). In the three generations (12.6 years; Bird et al. 2020) to 2021, forest extent (of >50% cover) was reduced in this species' range by 14-16% (Global Forest Watch 2022, based on data from Hansen et al. [2013] and methods disclosed therein). These data do not account for habitat degradation, nor for the fact that this species most likely occurs at higher densities at the lowest elevations of good forest. Consequently, the rate of forest cover loss is thought to represent the minimum possible rate of population reduction. In the past three generations, it is therefore suspected of having declined by 15-25%. There is little indication this rate will slow in the future, with rates of forest cover loss between 2016 and 2021 showing a moderate acceleration, and projections by Voigt et al. (2021) indicating that forests favoured by this species are most at risk. The same rate of population reduction is therefore suspected to occur over the next three generations.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Indonesia | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Indonesia | Bogani Nani Wartabone |
Indonesia | Buton Utara |
Indonesia | Feruhumpenai - Matano |
Indonesia | Gunung Sahendaruman |
Indonesia | Kepulauan Togean |
Indonesia | Lambusango |
Indonesia | Likupang |
Indonesia | Mahawu - Masarang |
Indonesia | Mekongga |
Indonesia | Rawa Aopa Watumohai |
Indonesia | Tangkoko Dua Sudara |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Shrubland | Subtropical/Tropical Moist | suitable | resident |
Altitude | 0 - 700 m | Occasional altitudinal limits | (max) 900 m |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Agriculture & aquaculture | Wood & pulp plantations - Small-holder plantations | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Pied Cuckooshrike Coracina bicolor. Downloaded from
https://datazone.birdlife.org/species/factsheet/pied-cuckooshrike-coracina-bicolor on 22/12/2024.
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 22/12/2024.