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

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Least Concern
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	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	3,540,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	100000-499999 mature individuals	poor	suspected	2021
Population trend	stable	-	suspected	-
Generation length	3.97 years	-	-	-
Number of subpopulations	3-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The size of the eastern population estimated from published sources (Garnett et al. 2011; NSW OEH 2016, 2019) to have been 5,700 (5,200–8,300) after fires in 2019–2020 killed an estimated 18% of birds (13–24% depending on the mortality scenario) based on maps of fire severity in 2019–2020 within the pre-fire range and initial assumptions about mortality at different fire severity classes (fire severity low: 10%; medium: 30%; high: 80%; very high: 100%). A true estimate of the western population has never been possible given the density of the habitat and cryptic nature of the bird (Burbidge et al. 2007; DPaW 2014), but an estimated population of 100 seems likely given recent losses (S Comer unpublished; in Comer et al. 2021). The population on Tasmania is the stronghold and suspected to exceed 100,000 birds (Collar and Boesman 2020).

Trend justification: Although the western population is declining, the global population is suspected to be stable overall given the stronghold on Tasmania and, to a lesser extent, the eastern mainland. Monitoring of the eastern population suggests all populations have survived fires and are likely to recover, but only if the future fire regime is suitable and habitat recovers in the way it has historically (Oliver et al. 2021). The western population is thought to be declining rapidly, although represents a small proportion of the global population - severe fires have reduced the population by >80%, and there is a high risk that further population reductions of the same order will occur in the next three generations (Comer et al. 2021).

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

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Grassland	Subtropical/Tropical Dry	suitable	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	0 - 1800 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Unknown		Unknown
		Stresses Indirect ecosystem effects, Ecosystem degradation
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Unknown		Unknown
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Vulpes vulpes	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Unknown		Unknown
		Stresses Species mortality
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Species mortality

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Recommended citation
BirdLife International (2024) Species factsheet: Ground Parrot Pezoporus wallicus. Downloaded from https://datazone.birdlife.org/species/factsheet/ground-parrot-pezoporus-wallicus on 30/11/2024.
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 30/11/2024.