LC
Sulawesi Woodcock Scolopax celebensis



Taxonomy

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.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2023 Least Concern
2016 Near Threatened C1
2012 Near Threatened C1
2008 Near Threatened C1
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 235,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing poor suspected -
Generation length 4.37 years - - -
Number of subpopulations 5-20 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: The population size of this species is entirely unknown and even qualitative descriptions of its abundance are difficult to make. It was collected in Lore Lindu National Park in 1917 (Riley 1921) and there have been sporadic sightings here since (Mole and Wangko 2006, eBird 2022). Gerd Heinrich collected six specimens from the Mekongga Mountains in 1930-31 (White and Bruce 1986), but a recent search of this mountain range failed to find it (Berryman and Eaton 2020). It has also been collected in Minahasa, and here the species was recently photographed on a camera trap (Patandung et al. 2019).
Evaluating these observations, the species is reasonably assumed to be quite widespread across montane Sulawesi and the habitat used by the bird observed by Patandung et al. (2019) illustrates why the species is likely to have extremely low detectability, especially with the call and display being wholly unknown. With c.35,000 km2 of montane forest within its elevational range (per Global Forest Watch 2022, based on data from Hansen et al. [2013] and methods disclosed therein), the population is unlikely to be small.

Trend justification: The population is suspected to be declining due to a number of possible threats. Although forest loss was previously thought to be impacting the species (see BirdLife International 2001), recent remote sensing data (Global Forest Watch 2022, based on data from Hansen et al. [2013] and methods disclosed therein) indicate that this has been minimal, equivalent to <0.5% in the three generations (13.1 years; Bird et al. 2020) to 2022. However, it may still be having a local impact. Patandung et al. (2019) noted that the Duasudara Nature Reserve block, whence they recorded the species, had been significantly impacted by fire in 1998 and 2015 and the species' apparent predilection for dense closed-canopy forest suggests it is likely to be impacted by even minor habitat alterations. Similarly, Patandung et al. also consider hunting (with snares) a risk, as well as feral domestic cats which were common at their study site and also mentioned by BirdLife International (2001; see account for Geomalia Zoothera heinrichi). All of these threats, however, are unlikely to be affecting more than a small fraction of the species' range. Consequently, although the rate of population decline is not quantified here, it is suspected to be slow.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Indonesia extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Indonesia Lore Lindu
Indonesia Mahawu - Masarang
Indonesia Morowali
Indonesia Pegunungan Latimojong

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1700 - 2300 m Occasional altitudinal limits 1100 - 2500 m

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Unintentional effects (species is not the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Unknown Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Felis catus Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Species mortality
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Sulawesi Woodcock Scolopax celebensis. Downloaded from https://datazone.birdlife.org/species/factsheet/sulawesi-woodcock-scolopax-celebensis 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.