Data Zone
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2019 | Near Threatened | B2ab(ii,iii,v); C2a(i) |
| 2018 | Least Concern | |
| 2016 | Least Concern | |
| 2013 | Least Concern | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Least Concern | |
| 2000 | Lower Risk/Least Concern | |
| 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 (km2) | 67,200 | |
| Extent of Occurrence breeding/resident (km2) | 944 | |
| Number of locations | 10-100 | - |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 2500-9999 | poor | suspected | 2019 |
| Population trend | decreasing | 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 | - | - | - | |
| Percentage in largest subpopulation | - | - | - | |
| Generation length (yrs) | 4.8 | - | - | - |
Population justification: The population size of the Chattering Kingfisher has not been directly quantified. A population estimate can be derived based on density estimates of congener species including T. chloris, found at densities of 5.6 individuals per km2 in American Samoa (Engbring and Ramsey 1989) and 43 individuals per km2 in the Northern Mariana Islands (Craig 1996, and T. cinnamominus, found at densities of 8 individuals per km2 in Federated States of Micronesia (Engbring et al. 1990). Assuming that T. tutus occurs at similar densities and that 45% of its mapped range (450 km2) is occupied, the population numbers approximately 1,134-8,708 individuals, which equates to 756-5,805 mature individuals. Given that the species is described as widespread and common in Atiu and Mauke (Cook Islands), the actual population size is more likely to fall in the band 2,500-9,999 mature individuals.
Trend justification: The population of the Chattering Kingfisher is believed to be in decline. Whilst the species is still considered widespread and common on the islands of Atiu and Mauke (McCormack 2007, Woodall and Kirwan 2019), it is thought to be declining through much of its range, particularly in Bora Bora, where the species is now considered rare (Woodall and Kirwan 2019), and Raiatea, where numbers have decreased from the 450-550 territories estimated in 1973 as a result of coastal urbanisation (Thibault and Cibois 2017). The species is predominantly declining as a result of habitat destruction and fragmentation caused by increasing human populations although, clearance for agriculture, over-grazing by goats, competition with introduced Common Myna and predation by introduced cats and rats also have an impact (del Hoyo et al. 2001, Woodall and Kirwan 2019).
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Cook Islands | extant | native | yes | |||
| French Polynesia | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Cook Islands | Atiu |
| French Polynesia | Mont Pahia |
| French Polynesia | Vallée de Avera |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | resident |
| Artificial/Terrestrial | Plantations | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Shrubland | Subtropical/Tropical Moist | suitable | resident |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | resident |
| Altitude | 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 | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Agriculture & aquaculture | Livestock farming & ranching - Small-holder grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Acridotheres tristis | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Capra hircus | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Felis catus | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Named species | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
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| Residential & commercial development | Housing & urban areas | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Recommended citation
BirdLife International (2023) Species factsheet: Todiramphus tutus. Downloaded from
http://datazone.birdlife.org/species/factsheet/chattering-kingfisher-todiramphus-tutus on 06/06/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 06/06/2023.
