NT
Kofiau Paradise-kingfisher Tanysiptera ellioti



Taxonomy

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.

IUCN Red list criteria met and history
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
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 320 medium
Extent of Occurrence breeding/resident (km2) 320
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals poor not applicable 0
Population trend decreasing medium suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 1 - - -
Percentage in largest subpopulation 100 - - -
Generation length (yrs) 3.4 - - -

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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
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  

Threats & impact
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

Recommended citation
BirdLife International (2023) Species factsheet: Tanysiptera ellioti. Downloaded from http://datazone.birdlife.org/species/factsheet/kofiau-paradise-kingfisher-tanysiptera-ellioti on 28/05/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 28/05/2023.