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

Taxonomic note

Foudia eminentissima, F. consobrina and F. aldabrana (del Hoyo and Collar 2016) were previously lumped as F. eminentissima following Sibley & Monroe (1990, 1993).

 

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	B1ab(iii)	B1ab(iii); D2

Red List history

Year	Category	Criteria
2021	Endangered	B1ab(iii)
2018	Endangered	B1ab(iii)
2016	Near Threatened	D2

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

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	390
Number of locations	1	-
Severely Fragmented		-

	Value	Data quality	Derivation	Year of estimate
No. of mature individuals	2000-6000	poor	estimated	2001
Population trend	Increasing		observed	-
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	1	-	-	-
Percentage in largest subpopulation	100	-	-	-
Generation length (yrs)	4.5	-	-	-

Population justification: Its population is estimated at between 2,000 and 6,000 mature individuals (Rocamora and Skerrett 2001).

Trend justification: The invasive Foudiamadagascariensis and madagascariensis x aldabrana hybrids have been eradicated from Aldabra (N. Bunbury in litt. 2017). Also, despite high levels of nest failure due to predation there is currently no evidence that this predation is causing population decline. In fact, monitoring work has shown that the species increased between 2002 and 2013 (van de Crommenacker et al. 2016).

Country/Territory	Occurrence status	Presence	Resident	Breeding	Non-breeding	Passage
Seychelles	N	Extant	Yes

Country/Territory	IBA Name
Seychelles	Aldabra Special Reserve

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

Threat (level 1)	Threat (level 2)	Impact and Stresses
Climate change & severe weather	Droughts	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Slow, Significant Declines		Medium Impact: 7
		Stresses Ecosystem degradation
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Foudia madagascariensis	Timing		Scope		Severity		Impact
		Past, Likely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Hybridisation
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Rattus rattus	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Slow, Significant Declines		Medium Impact: 7
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Problematic native species/diseases - Corvus albus	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Slow, Significant Declines		Medium Impact: 7
		Stresses Species mortality

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Pets/display animals, horticulture	-	-		International	Non-trivial	Recent

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Recommended citation
BirdLife International (2023) Species factsheet: Foudia aldabrana. Downloaded from http://www.birdlife.org on 26/03/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/03/2023.