Tobago Greenlet (Hylophilus insularis) - BirdLife species factsheet

Tobago Greenlet Hylophilus insularis

Current view: Data table and detailed info

Taxonomy

Taxonomic note

Hylophilus flavipes, H. viridiflavus and H. insularis (del Hoyo and Collar 2016) were previously lumped as H. flavipes following AOU (1998 and supplements), SACC (2005 and updates), Sibley and Monroe (1990, 1993) and Stotz et al. (1996).

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.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2021	Least Concern
2016	Least Concern
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

Migratory status	not a migrant	Forest dependency	medium
Land-mass type		Average mass	12 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	350 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	1500-7000 mature individuals	medium	suspected	2016
Population trend	stable	-	suspected	-
Generation length	2.67 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population is suspected to number 2,500-9,999 individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals.

Trend justification: The population trend has not been quantified. However, the species readily adapts to converted habitats and fragmented forests (Brewer et al. 2020). Thus, in the absence of evidence for any declines or substantial threats, the species is tentatively assessed as stable.

Country/territory distribution

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

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Dry	major	resident
Forest	Subtropical/Tropical Mangrove Vegetation Above High Tide Level	suitable	resident
Shrubland	Subtropical/Tropical Dry	major	resident
Altitude		Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Tobago Greenlet Hylophilus insularis. Downloaded from https://datazone.birdlife.org/species/factsheet/tobago-greenlet-hylophilus-insularis on 23/11/2024.
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 23/11/2024.