LC
Black-hooded Antshrike Thamnophilus bridgesi



Taxonomy

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
2022 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 Medium
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 66,500 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 50000-499999 poor suspected 2022
Population trend Decreasing inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 10-19 - - -
Decline (10 years/3 generation past and future) 10-19 - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 4.25 - - -

Population justification: The global population is suspected to number 50,000-499,999 mature individuals (Partners in Flight 2022). The species is described as 'fairly common' (Stotz et al. 1996).

Trend justification: The population trend has not been investigated. Tree cover within the range is lost at a rate of 7% over three generations (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). The species is restricted to dense, tangled undergrowth of humid forests (Zimmer and Isler 2020); therefore, population declines may be exacerbated by habitat degradation and exceed the rate of tree cover loss. Tentatively, declines are here placed in the band 10-19% over three generations.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Costa Rica N Extant Yes
Panama N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Panama El Chorogo-Palo Blanco
Panama Quebrada Mellicita-Charco Azul
Costa Rica Fila Costeña
Costa Rica Sierpe Wetlands and Osa Peninsula
Costa Rica Nicoya Peninsula
Costa Rica El Rodeo, Cerros de Escazú and La Carpintera
Costa Rica Los Santos, La Amistad Pacífico
Costa Rica Tárcoles, Carara and La Cangreja
Costa Rica Tilarán Highlands
Panama Gran Galera de Chorcha-Cerro Barro Blanco

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane suitable resident
Altitude 0 - 1430 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2022) Species factsheet: Thamnophilus bridgesi. Downloaded from http://www.birdlife.org on 09/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 09/12/2022.