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

Taxonomic note
Ceyx fallax and C. sangirensis (del Hoyo and Collar 2014) were previously lumped as C. fallax following Sibley and Monroe (1990, 1993).

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
2021	Least Concern
2016	Near Threatened	C1
2014	Near Threatened	C1
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	18 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	430,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	poor	suspected	2014-2024
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-10%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-10%	-	-	-
Generation length	2.73 years	-	-	-

Population justification: The population size of this species has not been quantified, but it has been described as generally scarce. The size of the range and large extent of remaining apparently suitable habitat suggests that the overall population size is unlikely to be small.

Trend justification: A slow population decline is suspected to be occurring in line with habitat degradation and the conversion of forest to agricultural land throughout the species's range. Forest cover loss within the range has totalled 8.5-9.4% over the past ten years (minimum is for canopy closure of 30% and forest cover from 2010, maximum is for 75% and 2010 respectively [data from Global Forest Watch 2021]). While the species occurs in secondary and degraded forest, absolute forest cover loss is suspected to drive a population reduction at a rate up to an equivalent value, hence the rate of past population reduction is suspected to have been between 1-9%. The maximum annual mean rate of forest cover loss has been for the period between 2015-2020, which if projected for the period 2015-2025 would be equivalent to a 9.7-10.8% loss of forest cover (data from Global Forest Watch 2021). This is very similar to the most recent 5-year annual mean, which if projected forwards for 2021-2031 is equivalent to a 9.2-9.7% loss of forest cover (data from Global Forest Watch 2021). 
The species is tolerant of some level of habitat degradation and occurs in secondary and logged forests but does depend on forest cover, hence absolute forest cover loss is suspected to be driving a population reduction at a rate up an equivalent value of forest loss, hence the population is suspected to have declined at a rate of between 1-9% over the past 10 years, at 1-10% over the next ten years and at a maximum rate of up to 11% over the 10-year period including the current year.

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

Country/Territory	IBA Name
Indonesia	Bogani Nani Wartabone
Indonesia	Feruhumpenai - Matano
Indonesia	Lambusango
Indonesia	Morowali
Indonesia	Pegunungan Tokalekaju
Indonesia	Rawa Aopa Watumohai
Indonesia	Tangkoko Dua Sudara

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	4 - 1000 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
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Wood & pulp plantations - Small-holder plantations	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: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation

---

Recommended citation
BirdLife International (2024) Species factsheet: Sulawesi Dwarf-kingfisher Ceyx fallax. Downloaded from https://datazone.birdlife.org/species/factsheet/sulawesi-dwarf-kingfisher-ceyx-fallax 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.