Data Zone
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2022 | Near Threatened | D1 |
| 2016 | Near Threatened | D2 |
| 2015 | Near Threatened | D2 |
| 2012 | Vulnerable | D2 |
| 2008 | Vulnerable | D2 |
| 2004 | Vulnerable | |
| 2000 | Vulnerable | |
| 1996 | Vulnerable | |
| 1994 | Vulnerable | |
| 1988 | Near Threatened |
| Migratory status | not a migrant | Forest dependency | High |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 28 | medium |
| Extent of Occurrence breeding/resident (km2) | 18 | |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 1300-2000 | medium | estimated | 2011 |
| Population trend | Stable | poor | 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) | 3.53 | - | - | - |
Population justification: In 1986, the species was estimated to have a total population of c.2,000 individuals (Watling 1988). Surveys conducted on Ogea Levu and Ogea Driki in July 2011 (following Watling's [1988] methodology) recorded 49 individuals, equating to 19.22 per 10 ha (Andersen et al. 2012), compared with 10.68 per 10 ha in 1986 (Watling 1988). Crude extrapolation from these data yields a current estimate of 3,204 individuals compared with 1,780 in 1986 (Watling 1988). However, this is based on surveys conducted over three days and it is difficult to draw firm conclusions about the true population size and whether this apparent change in the population size represents a genuine increase or simple variation in the population. No more recent population estimate has been made, and thus the population is estimated to number 2,000-3,000 individuals, based on Watling (1988) and Andersen et al. (2012). This equates to 1,333-2,000 mature individuals, rounded here to 1,300-2,000 mature individuals.
Trend justification: The species is tolerant of habitat degradation and does not appear to be declining despite the presence of introduced predators. Based on results from Andersen et al.'s (2012) survey, there appears to be no evidence for a population decline and there is no more recent trend assessment. Consequently, its population is assessed as stable.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Fiji | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Fiji | Ogea |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 82 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Climate change & severe weather | Storms & flooding | Timing | Scope | Severity | Impact | ||||
| Past, Likely to Return | Whole (>90%) | Negligible declines | Past Impact | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Felis catus | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Named species | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
|||||||||
| Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Circus approximans | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Mayrornis lessoni | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | No decline | Low Impact: 4 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Tyto alba | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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Recommended citation
BirdLife International (2023) Species factsheet: Mayrornis versicolor. Downloaded from
http://www.birdlife.org on 29/01/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 29/01/2023.
