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

Taxonomic note
Previously (Handbook of the Birds of the World and BirdLife International 2022) placed in Estrilda but moved to current genus following Olsson and Alström (2020). Proposed subspecies torrida (described from Inhaminga, in C Mozambique) and poliogastra (from Inhambane, in S Mozambique) treated as synonyms of incana. Two subspecies recognized.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2023. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 8. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v8_Dec23.zip.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2024	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	not a migrant	Forest dependency	low
Land-mass type		Average mass	7 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	5,910,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	1.64 years	-	-	-

Population justification: The global population size has not been quantified, but the species is described as uncommon or scarce and easily over-looked (Clement 1999). The population is suspected to be declining owing to ongoing habitat destruction in parts of its range and exploitation for the cagebird trade (Fry and Keith 2004).

Trend justification: The population is suspected to be declining owing to ongoing habitat destruction in parts of its range and exploitation for the cagebird trade (Fry and Keith. 2004).

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Angola	extant	native	yes
Congo	extant	native	yes
Congo, The Democratic Republic of the	extant	native	yes
Eswatini	extant	native	yes
Gabon	extant	native	yes
Malawi	extant	native	yes
Mozambique	extant	native	yes
South Africa	extant	native	yes
Tanzania	extant	native	yes
Zambia	extant	native	yes
Zimbabwe	extant	native	yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Shrubland	Subtropical/Tropical Moist	major	resident
Altitude		Occasional altitudinal limits

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Black-tailed Waxbill Glaucestrilda perreini. Downloaded from https://datazone.birdlife.org/species/factsheet/black-tailed-waxbill-glaucestrilda-perreini on 26/12/2024.
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 26/12/2024.