Data Zone
Taxonomic source(s)
Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
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 |
|---|---|---|
| - | - | A2bc+4bc |
| Year | Category | Criteria |
|---|---|---|
| 2022 | Vulnerable | A2bc+4bc |
| 2016 | 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 | full migrant | Forest dependency | medium |
| Land-mass type | Average mass | 46 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 370,000 km2 | |
| Extent of Occurrence (non-breeding) | 1,550,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 7500-15000, 10000 mature individuals | poor | suspected | 2020 |
| Population trend | decreasing | - | inferred | 2012-2023 |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
| Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 30-49% | - | - | - |
| Generation length | 3.6 years | - | - | - |
| Number of subpopulations | 1-2 | - | - | - |
Population justification: While there are no quantitative data available on the population size, experts suspect there are approximately 10,000 (7,500-15,000) mature individuals (Holdsworth et al. 2021).
Trend justification:
Sixty years ago, N. chrysostoma was widespread, and the commonest parrot in Tasmania (McColl 1957), but the species has greatly declined over the least two decades.
In Tasmania, reporting rates from regular 5-km area searches across the north declined by 77% from 2008–2018, and by 75% across the State from 2001–2005 to 2013–2017. At two long-term monitoring sites near Wynyard in north-west Tasmania, reporting rates from 5-km area searches declined by >75% from 1999–2016 (Newman & Ashby 2018) and 64% from 2010–2020 (M. Newman unpublished, in Holdsworth et al. 2021). On the mainland, annual reporting rates from the breeding range in southern Victoria during the breeding season (September–January) declined by 59% and 26% for 2-ha 20-min surveys and 500-m area searches, respectively, from 2009–2019 (BirdLife Australia 2020, eBird 2021) but reporting rates are too low for analysis in the non-breeding range of inland New South Wales, South Australia and Queensland. Two local analyses show no trend: (1) in the Midlands, Tasmania, N. chrysostoma were more abundant on 72 surveyed sites in 2016, a wet year, than when previously surveyed in 1996–1998 (Bain et al. 2020), but there was no monitoring in the intervening period; and (2) in the greater Geelong and Surf Coast region, Victoria, annual reporting rates of breeding and non-breeding between 2009 and 2020 show no clear trend (BirdLife Australia 2020, eBird 2021, Holdsworth et al. 2021).
Consequently, although a continuing decline is inferred, there is uncertainty with the ongoing rate. Combining the data available, Holdsworth et al. (2021) suspected a global rate of decline of 30-49% over the past three generations. It is unclear whether this rate of decline can be maintained in the future, although a continuing decline is inferred on the basis that the identified plausible threats remain unmitigated.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Australia | extant | native | yes | yes |
| Country/Territory | IBA Name |
|---|
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Pastureland | suitable | non-breeding |
| Artificial/Terrestrial | Pastureland | suitable | breeding |
| Artificial/Terrestrial | Plantations | suitable | non-breeding |
| Artificial/Terrestrial | Plantations | suitable | breeding |
| Desert | Hot | suitable | non-breeding |
| Desert | Hot | suitable | breeding |
| Forest | Subtropical/Tropical Dry | suitable | non-breeding |
| Forest | Subtropical/Tropical Dry | suitable | breeding |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | non-breeding |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | breeding |
| Forest | Subtropical/Tropical Moist Montane | suitable | non-breeding |
| Forest | Subtropical/Tropical Moist Montane | suitable | breeding |
| Grassland | Subtropical/Tropical Dry | suitable | non-breeding |
| Grassland | Subtropical/Tropical Dry | suitable | breeding |
| Shrubland | Subtropical/Tropical Dry | suitable | non-breeding |
| Shrubland | Subtropical/Tropical Dry | suitable | breeding |
| Shrubland | Subtropical/Tropical Moist | suitable | non-breeding |
| Shrubland | Subtropical/Tropical Moist | suitable | breeding |
| Altitude | 0 - 1200 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 | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Agriculture & aquaculture | Livestock farming & ranching - Agro-industry grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Felis catus | Timing | Scope | Severity | Impact | ||||
| Ongoing | Unknown | Negligible declines | Unknown | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Petaurus breviceps | Timing | Scope | Severity | Impact | ||||
| Ongoing | Unknown | Negligible declines | Unknown | ||||||
|
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Vulpes vulpes | Timing | Scope | Severity | Impact | ||||
| Ongoing | Unknown | Negligible declines | Unknown | ||||||
|
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| Invasive and other problematic species, genes & diseases | Viral/prion-induced diseases - Beak and Feather Disease Virus (BFDV) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
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| Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
| Ongoing | Whole (>90%) | Slow, Significant Declines | Medium Impact: 7 | ||||||
|
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Recommended citation
BirdLife International (2024) Species factsheet: Blue-winged Parrot Neophema chrysostoma. Downloaded from
https://datazone.birdlife.org/species/factsheet/blue-winged-parrot-neophema-chrysostoma 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.