• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further 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
-	-	D1

Red List history

Year	Category	Criteria
2020	Vulnerable	D1
2016	Critically Endangered	B1ab(iii)
2015	Critically Endangered	B1ab(iii)
2012	Critically Endangered	B1ab(iii)
2010	Critically Endangered	B1a+b(iii)
2009	Critically Endangered	B1a+b(iii)
2008	Critically Endangered
2004	Critically Endangered
2000	Critically Endangered
1996	Critically Endangered
1994	Critically Endangered
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	160 km2	medium
Area of Occupancy (breeding/resident)	32 km2	good
Number of locations	35-55	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	350-506 mature individuals	good	estimated	2018
Population trend	increasing	good	estimated	-
Generation length	3.7 years	-	-	-
Number of subpopulations	2	-	-	-
Percentage of mature individuals in largest subpopulation	80-87%	-	-	-

Population justification:

The population is now estimated to number between 350-506 mature individuals across both viable populations (280-436 on La Digue and 70 on Denis Island), with the population believed to be increasing on both islands (Bristol et al. 2018, Bristol and Gamatis 2017). Translocations to a third island, Curieuse, began in December 2018. 

Trend justification:

The overall population is steadily increasing. Territories on the main La Digue western plateau continue to decline due to habitat loss from development, but this decline is slowing, and is offset by the increase in territories off plateau on La Digue. Additionally, the established population on Denis island is now viable, and is increasing also (Bristol, 2016; Gamatis and Bristol, 2018).

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

Country/Territory	IBA Name
Seychelles	La Digue island

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Wetlands (inland)	Permanent Freshwater Lakes (over 8ha)	suitable	resident
Wetlands (inland)	Permanent Freshwater Marshes/Pools (under 8ha)	suitable	resident
Altitude		Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Pistia stratiotes	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Rattus rattus	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Reduced reproductive success
Invasive and other problematic species, genes & diseases	Problematic native species/diseases - Unspecified species	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation
Residential & commercial development	Housing & urban areas	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Residential & commercial development	Tourism & recreation areas	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Seychelles Paradise-flycatcher Terpsiphone corvina. Downloaded from https://datazone.birdlife.org/species/factsheet/seychelles-paradise-flycatcher-terpsiphone-corvina 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.