• 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., 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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2024	Near Threatened	B1b(iii)+2b(iii)
2016	Vulnerable	D1+2
2012	Vulnerable	D1+2
2008	Vulnerable	D1; D2
2004	Vulnerable
2000	Vulnerable
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Area of Occupancy (breeding/resident)	208 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	unknown	poor	-	-
Generation length	3.79 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The global population size has not been estimated directly. This species is very poorly known due to its extremely restricted range and inaccessible habitat, and is unobtrusive and likely overlooked (Dutson 2011, Quelennec and Quelennec 2017). One specimen was taken in 1953 (Cain and Galbraith 1956) and singles were seen in 1994 and 1997 (Gibbs 1996, G. Dutson pers. obs. 1997). One individual was observed at 1,600 m on Mt. Mbutohaina in 2013, and two occupied territories were found in 2016 (M. Lagerqvist in litt. 2016, Quelennec and Quelennec 2017). Some surveys in suitable habitat have failed to locate the species at all (F. Lambert in litt. 2019). An accurate quantification of the population size is urgently required.

Trend justification: Forest loss detected by remote sensing data (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein) has been very low over the past three generations (<1%, or c.1-2% including the possibly extant range). As a terrestrial species, it may also be affected by introduced mammalian predators, especially cats and rats which are relatively common at high altitudes on Guadalcanal (T. Leary in litt. 2000). As there are so few records of this species and the threats are poorly understood, the population trend is considered unknown.

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

Country/Territory	IBA Name
Solomon Islands	Guadalcanal Watersheds

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1400 - 1600 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Energy production & mining	Mining & quarrying	Timing		Scope		Severity		Impact
		Unknown		Minority (<50%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Named species	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Reduced reproductive success, 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 Ecosystem degradation

---

Recommended citation
BirdLife International (2024) Species factsheet: Guadalcanal Thrush Zoothera turipavae. Downloaded from https://datazone.birdlife.org/species/factsheet/guadalcanal-thrush-zoothera-turipavae 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.