• 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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Near Threatened	B1b(iii)+2b(iii)
2016	Vulnerable	D1
2013	Vulnerable	D1
2012	Endangered	C2a(ii)
2010	Endangered	C2a(ii)
2008	Data Deficient
2004	Data Deficient
2000	Data Deficient
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	320 km2	medium
Area of Occupancy (breeding/resident)	320 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	poor	-	-
Population trend	decreasing	medium	suspected	-
Generation length	3.4 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population size of this species is unknown. Approximately 137 km² of forest was left in this species' range in 2020 (Global Forest Watch [2021], using data from Hansen et al. [2013] and methods disclosed therein). The population was previously estimated to number 250-999 mature individuals, however was described as abundant by Diamond et al. (2009) and it occurs in primary and secondary forest as well as shaded gardens. eBird (2021) data appear to corroborate this, with a single checklist documenting 10 individuals on a 2-mile walk, more than any other forest bird (but also, given its loud vocalisations, presumably it is among the most detectable). Given the high densities recorded in other Tanysiptera (Bell [1982], for example, recorded densities of up to 500 individuals/km² of T. galatea, although this is probably exceptional) and the qualitative descriptions of its abundance, it is difficult to estimate the population size of this species; however, the population is considered very unlikely to number fewer than 1,000 mature individuals.

Trend justification: Although the species persists in traditional gardens, it is apparently most common in closed-canopy primary and secondary forest. Tree cover loss in this species has been minimal (equivalent to c.2% over the past three generations; Global Forest Watch [2021], using data from Hansen et al. [2013] and methods disclosed therein); however, there are additional reports of selective logging (see Diamond et al. 2009, Beehler and Pratt 2016) indicating degradation that is precautionarily thought to be causing a slow decline in mature individuals. The rate of this decline however remains unquantified.

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
Artificial/Terrestrial	Rural Gardens	suitable	unset
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	0 - 65 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
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
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Unknown		Unknown
		Stresses Indirect ecosystem effects, Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Kofiau Paradise-kingfisher Tanysiptera ellioti. Downloaded from https://datazone.birdlife.org/species/factsheet/kofiau-paradise-kingfisher-tanysiptera-ellioti on 24/11/2024.
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 24/11/2024.