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

Taxonomic note

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.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2016	Near Threatened	D2
2013	Near Threatened	D2
2012	Vulnerable	D1+2
2008	Vulnerable	D1; D2
2006	Vulnerable
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	12 km2	medium
Number of locations	11-100	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2600-5400 mature individuals	medium	estimated	2010
Population trend	increasing	good	estimated	1998-2008
Generation length	3.6 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: Following a rapid increase, in 2010 the population was estimated to number a maximum of 8,000 individuals, based on the relative abundances of this species and Rodrigues Warbler Acrocephalus rodericanus (C. Jones in litt. 2010, 2013). Considering uncertainties and difficulties inherent in estimating this species's population size, the estimate is put at 4,000-8,000 individuals (C. Jones in litt. 2013, P. Steward in litt. 2013), assumed to include c.2,600-5,400 mature individuals.

Trend justification: Populations have increased in line with the recovery and expansion of native and exotic woodland (C. Jones in litt. 2000, Safford 2001). Surveys in 1999 and 2010 followed the same methods and the comparison of the estimates of 334 (1999) and 804 pairs (2010) gives an average annual growth rate of c.8% (assuming the age structure or proportion of non-breeders remained similar) (P. Steward in litt. 2013). However, it has been noted that previous surveys were conducted in the non-breeding season when the species may be only half as detectable as when breeding, and thus are likely to have underestimated numbers (C. Jones in litt. 2013). Consequently the total population size in 2010 is thought to be much larger than the 1,700 individuals estimated by Norfolk (2010). The population is still increasing as the amount of forest cover increases in area and trees increase in size (C. Jones in litt. 2013).

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

Country/Territory	IBA Name
Mauritius	Rodrigues mainland

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	20 - 390 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Majority (50-90%)		No decline		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Majority (50-90%)		No decline		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Unknown		Unknown
		Stresses Indirect ecosystem effects, Ecosystem degradation
Climate change & severe weather	Storms & flooding	Timing		Scope		Severity		Impact
		Past, Likely to Return		Whole (>90%)		Unknown		Past Impact
		Stresses Ecosystem degradation
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Foudia madagascariensis	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		No decline		Low Impact: 5
		Stresses Competition
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Rattus rattus	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		No decline		Low Impact: 5
		Stresses Reduced reproductive success

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Recommended citation
BirdLife International (2024) Species factsheet: Rodrigues Fody Foudia flavicans. Downloaded from https://datazone.birdlife.org/species/factsheet/rodrigues-fody-foudia-flavicans 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.