• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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.
Kennedy, R. S.; Fisher, T. H.; Harrap, S. C. B.; Diesmos, A. C.; Manamtam, A. S. 2001. A new species of woodcock (Aves: Scolopacidae) from the Philippines and a re-evaluation of other Asian/Papuasian woodcock. Forktail 17: 1-12.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2023	Near Threatened	C2a(i)
2016	Near Threatened	B1ab(i,ii,iii,v); C1
2013	Near Threatened	B1ab(i,ii,iii,v);C1
2012	Near Threatened	B1ab(i,ii,iii,v);C1
2008	Near Threatened	B1a+b(i,ii,iii,v); C1
2004	Near Threatened
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	305,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2500-9999 mature individuals	poor	suspected	2022
Population trend	decreasing	poor	suspected	-
Generation length	4.2 years	-	-	-
Number of subpopulations	10-50	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population size has not been quantified. However, week-long ornithological surveys across 27 sites on nine mountains in West-Central Java between 2018 and 2020 found the species at 4 sites and 3 mountains with a mean encounter rate of 0.33 groups/hour (range =  0.15 to 0.49 where present; C. Devenish, A. R. Junaid and S. Marsden in litt. 2020). On Sumatra, there are very few records (van Marle and Voous 1988, eBird 2023). Precautionarily, it is assumed this is a reflection of genuine scarcity, especially as other montane nocturnal species are encountered more regularly, albeit they are species with a higher detectability. The area of forest within its mapped range is c.8,000 km², (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein) however available data on survey effort strongly suggest the species occurs at a low density, even accounting for its low detectability. Consequently, it is considered possible that the species numbers fewer than 10,000 mature individuals, with no more than 1,000 at each site. However, on Sumatra in particular, this requires verification, with large tracts of uninterrupted montane forest potentially suitable for the species.

Trend justification: There are no data on population trends; however, the species is thought to be in decline owing to habitat degradation which is ongoing on both Java (Higginbottom et al. 2019) and Sumatra (principally the latter), albeit at a slow rate according to remote sensing data (which, however, are relatively insensitive to degradation) (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein).

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

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1500 - 3000 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		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
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
		Stresses Ecosystem degradation
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Unknown		Unknown
		Stresses Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Javan Woodcock Scolopax saturata. Downloaded from https://datazone.birdlife.org/species/factsheet/javan-woodcock-scolopax-saturata on 28/11/2024.
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 28/11/2024.