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

Taxonomic note

Megalurulus whitneyi and M. turipavae (del Hoyo and Collar 2016) were previously lumped as M. whitneyi following Sibley and Monroe (1990, 1993). All species subsequently reassigned to Cincloramphus following Alström et al. (2018). Until recently treated as conspecific with C. grosvenori, C. llaneae and C. whitneyi, but differs from C. llaneae in characters given under that species; from both C. grosvenori and C. whitneyi by its longer tail with notably elongate spine-tips (3); broad dark brown breast sides to lower flanks (2); darker, less rufous-tinged upperparts (1); and further from C. grosvenori by its much weaker facial mask (2); and sepia-tawny vs ochraceous-buff throat to breast (1); and from C. whitneyi by its slightly weaker mask (1). Monotypic.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2022. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Near Threatened	B1b(iii)+2b(iii)
2016	Near Threatened	D1
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)	1,000 km2	medium
Area of Occupancy (breeding/resident)	670 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	1000-2000 mature individuals	poor	suspected	-
Population trend	decreasing	poor	suspected	1998-2008
Generation length	3.5 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: This species's status is difficult to determine because of its shy and retiring nature (del Hoyo et al. 2006), and is much rarer than M. whitneyi (G. Dutson in litt. 2016). It is unlikely that there are fewer than 1,000 mature individuals, but the population size may approach this number and so it is provisionally placed in the range of 1,000-2,000 mature individuals.

Trend justification: This species is suspected to be declining because of degradation of habitat, indicated by remote sensing data (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein) indicating localised forest loss and reports of an altered understorey comprising potentially exotic species (F. Lambert in litt. 2019).

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 Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1200 - 1550 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		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%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality

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Recommended citation
BirdLife International (2024) Species factsheet: Guadalcanal Thicketbird Cincloramphus turipavae. Downloaded from https://datazone.birdlife.org/species/factsheet/guadalcanal-thicketbird-cincloramphus-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.