• 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
2018	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	Lower Risk/Least Concern

Migratory status	nomadic	Forest dependency	low
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	7,160,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	increasing	-	suspected	-
Generation length	3.3 years	-	-	-

Population justification: The global population size has not been quantified, but the species is reported to be abundant (del Hoyo et al. 1997), while national population sizes have been estimated at < c.100 introduced breeding pairs in Korea and c.100-10,000 introduced breeding pairs in Japan (Brazil 2009).

Trend justification: The population is suspected to be increasing as ongoing habitat degradation is creating new areas of suitable habitat.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Australia	extant	native		yes
Puerto Rico (to USA)	extant	introduced
USA	extant	introduced		yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Arable Land	suitable	resident
Artificial/Terrestrial	Pastureland	suitable	resident
Artificial/Terrestrial	Rural Gardens	suitable	resident
Desert	Hot	suitable	resident
Forest	Subtropical/Tropical Dry	suitable	resident
Grassland	Subtropical/Tropical Dry	suitable	resident
Savanna	Dry	suitable	resident
Shrubland	Subtropical/Tropical Dry	suitable	resident
Altitude		Occasional altitudinal limits

Purpose	Scale
Food - human	subsistence, national
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Budgerigar Melopsittacus undulatus. Downloaded from https://datazone.birdlife.org/species/factsheet/budgerigar-melopsittacus-undulatus on 22/11/2024.
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 22/11/2024.