Scaly-breasted Thrasher (Allenia fusca) - BirdLife species factsheet

Scaly-breasted Thrasher Allenia fusca

Current view: Data table and detailed info

Taxonomy

Taxonomic note

Allenia fusca (del Hoyo and Collar 2016) was previously listed as Margarops fuscus.

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
2018	Least Concern
2016	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

Species attributes

Migratory status	not a migrant	Forest dependency	high
Land-mass type		Average mass	68 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	83,700 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	unknown	-	-	-
Generation length	5.3 years	-	-	-

Population justification: The global population size has not been quantified, but this species is described as 'common' (Stotz et al. (1996).

Trend justification: The population trend is difficult to determine because of uncertainty over the impacts of habitat modification on population sizes.

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Antigua and Barbuda	extant	native	yes
Barbados	possibly extinct	native	yes
Bonaire, Sint Eustatius and Saba (to Netherlands)	extant	native	yes
Dominica	extant	native	yes
Grenada	extant	native	yes
Guadeloupe (to France)	extant	native	yes
Martinique (to France)	extant	native	yes
Montserrat (to UK)	extant	native	yes
St Barthelemy (to France)	extant	native	yes
St Kitts and Nevis	extant	native	yes
St Lucia	extant	native	yes
St Vincent and the Grenadines	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Antigua and Barbuda	Christian Valley
Antigua and Barbuda	Wallings Forest
Dominica	Morne Diablotin National Park
Dominica	Morne Trois Pitons National Park
Dominica	Point Des Foux
Guadeloupe (to France)	Forestry massif of Basse-Terre island
Guadeloupe (to France)	îlets de la Petite-Terre
Guadeloupe (to France)	Pointe des Châteaux
Martinique (to France)	Forêts du Nord et de la Montagne Pelée
Martinique (to France)	Grand Macabou
Martinique (to France)	Mangrove de Fort de France
Martinique (to France)	Massif forestier entre Le Diamant et les Trois-Îlets
Martinique (to France)	Pitons du Carbet
Martinique (to France)	Presqu'île de la Caravelle
Montserrat (to UK)	Centre Hills
Montserrat (to UK)	Northern Forested Ghauts
Montserrat (to UK)	South Soufriere Hills
St Kitts and Nevis	St. Kitts Central Forest Reserve
St Lucia	Castries and Dennery Waterworks Reserve and Marquis
St Lucia	Iyanola and Grande Anses, Esperance and Fond D'ors
St Lucia	Mandelé Protected Landscape
St Lucia	Pitons (Qualibou and Canaries)
St Martin (to France)	Pic Paradis
St Vincent and the Grenadines	Colonarie Forest Reserve
St Vincent and the Grenadines	Cumberland Forest Reserve
St Vincent and the Grenadines	Dalaway (Buccament) Watershed
St Vincent and the Grenadines	Kingstown Forest Reserve
St Vincent and the Grenadines	La Soufrière National Park
St Vincent and the Grenadines	Mount Pleasant Forest Reserve
St Vincent and the Grenadines	Richmond Forest Reserve

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Dry	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Shrubland	Subtropical/Tropical Dry	suitable	resident
Altitude	0 - 900 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Scaly-breasted Thrasher Allenia fusca. Downloaded from https://datazone.birdlife.org/species/factsheet/scaly-breasted-thrasher-allenia-fusca 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.