• Summary
• Text account
• Data table and detailed info
• Range map
• Resources

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
-	-	-

Red List history

Year	Category	Criteria
2017	Near Threatened	B1ab(iii,v)+2b(iii,v)
2016	Least Concern
2013	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	altitudinal migrant	Forest dependency	high
Land-mass type		Average mass	55 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,700 km2
Area of Occupancy (breeding/resident)	1,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	13700-50000 mature individuals	poor	estimated	2017
Population trend	increasing	-	suspected	-
Generation length	3.3 years	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population has been estimated as either 20,500 individuals (roughly 13,700 mature individuals) or 25,000 pairs (see Salamolard 2013), although these estimates were calculated in the 1980s and so require revision.

Trend justification: The population is suspected to be recovering from intense hunting pressure now that the species is protected by law, although illegal trapping still occurs (del Hoyo et al. 2005).

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Réunion (to France)	extant	native

Country/Territory	IBA Name
Réunion (to France)	Grand Bassin - Le Dimitile
Réunion (to France)	Grand Bénard - Tapcal
Réunion (to France)	Mouth of the Cirque de Salazie
Réunion (to France)	Piton des Neiges - Gros Morne
Réunion (to France)	Plaine des Chicots - Plaine d'Affouches
Réunion (to France)	Ravine de la Grande Chaloupe
Réunion (to France)	Rivière des Marsouins - Grand Etang
Réunion (to France)	Rivière des Remparts - Rivière Langevin

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	300 - 2500 m	Occasional altitudinal limits	(min) 100 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Scale Unknown/Unrecorded	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species mortality
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Pycnonotus jocosus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Unknown		Unknown
		Stresses Competition
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Rattus rattus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Unknown		Unknown
		Stresses Species mortality

Purpose	Scale
Pets/display animals, horticulture	subsistence, national

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Recommended citation
BirdLife International (2025) Species factsheet: Reunion Bulbul Hypsipetes borbonicus. Downloaded from https://datazone.birdlife.org/species/factsheet/reunion-bulbul-hypsipetes-borbonicus on 20/01/2025.
Recommended citation for factsheets for more than one species: BirdLife International (2025) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 20/01/2025.