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

Taxonomic note
Jønsson et al. (2018) establish that Cerulean Paradise-flycatcher Eutrichomyias rowleyi, Drongo Fantail Chaetorhynchus papuensis, Natewa Silktail Lamprolia klinesmithi and Taveuni Silktail L. victoriae belong in a separate ancient family, Lamproliidae, sister to the Rhipiduridae. This finding is accepted here.

Lamprolia victoriae and L. klinesmithi (del Hoyo and Collar 2016) were previously lumped as L. victoriae following Sibley & Monroe (1990, 1993).

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2020. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 5. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	C2a(ii)

Red List history

Year	Category	Criteria
2023	Vulnerable	C2a(ii)
2016	Vulnerable	C2a(ii)
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	356 km2	medium
Area of Occupancy (breeding/resident)	356 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	3000-5000 mature individuals	medium	estimated	2019
Population trend	decreasing	medium	inferred	-
Generation length	3.53 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population is roughly estimated to number 3,895 mature individuals based on systematic point counts carried out in 2018 and 2019 (Operation Wallacea 2020, J. England in litt. 2020), placed here in the band 3,000-5,000 mature individuals to account for some uncertainty.

Trend justification: This species is heavily reliant on mature forest. It is recorded at higher densities in least disturbed habitat and records in disturbed habitat and mahogany plantations are always in close proximity to mature forest (Operation Wallacea 2020). Although the rate of conversion of old-growth native forest to mahogany plantations has slowed significantly, logging and subsistence farming still persist within the range (Anderson et al. 2017). However, this appears to be largely undetected by remote sensing data which indicate only minimal forest loss within the range (Global Forest Watch 2023, using data from Hansen et al. [2013] and methods disclosed therein). The majority of recently observed forest clearance has been for (sometimes large scale) cultivation of kava (Piper methysticum), which is now a high value crop and widely traded and sold in the region (J. England in litt. 2020, O'Brien et al. 2021). The species is thought to no longer occur in areas where forest has been cleared, for example it can no longer be caught in areas where mist nets were erected in 2017 which are now further from forest due to agricultural expansion (M. O'Brien in litt. 2023). Invasive species may also be contributing to population declines in this species (J. England in litt. 2020), facilitated by ongoing habitat loss and disturbance. The most recent population estimate of 3,895 mature individuals also suggests a decline in the population given it was previously placed in the band 6,000-12,000 mature individuals (J. S. Kretzschmar in litt. 2000).

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

Country/Territory	IBA Name
Fiji	Natewa/Tunuloa Peninsula

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	0 - 600 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
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Agro-industry grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Wood & pulp plantations - Agro-industry plantations	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		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, Ecosystem conversion
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Herpestes auropunctatus	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Rattus exulans	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Rattus norvegicus	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Unspecified species	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Indirect ecosystem effects, Species mortality

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Recommended citation
BirdLife International (2024) Species factsheet: Natewa Silktail Lamprolia klinesmithi. Downloaded from https://datazone.birdlife.org/species/factsheet/natewa-silktail-lamprolia-klinesmithi 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.