Data Zone
Taxonomic note
Thamnophilus bernardi and T. shumbae (del Hoyo and Collar 2016) were previously lumped as Sakesphorus bernardi following SACC (2005 & updates), Sibley & 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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Not Recognised | |
| 2008 | Not Recognised | |
| 2004 | Not Recognised | |
| 2000 | Not Recognised | |
| 1994 | Not Recognised | |
| 1988 | Not Recognised |
| Migratory status | not a migrant | Forest dependency | medium |
| Land-mass type | Average mass | 34 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 184,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 3.19 years | - | - | - |
Population justification: The global population size has not been quantified. This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 3% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Ecuador | extant | native | yes | |||
| Peru | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Ecuador | Alamor-Celica |
| Ecuador | Bosque Protector Cerro Blanco |
| Ecuador | Bosque Protector Chongón-Colonche |
| Ecuador | Bosque Protector Jatumpamba-Jorupe |
| Ecuador | Bosque Protector Puyango |
| Ecuador | Cañón del río Catamayo |
| Ecuador | Catacocha |
| Ecuador | Cazaderos-Mangaurquillo |
| Ecuador | Cordillera El Bálsamo |
| Ecuador | Parque Nacional Machalilla y alrededores |
| Ecuador | Reserva Biológica Tito Santos |
| Ecuador | Reserva Ecológica Arenillas |
| Ecuador | Reserva Ecológica Comunal Loma Alta |
| Ecuador | Reserva Natural Tumbesia-La Ceiba-Zapotillo |
| Ecuador | Tambo Negro |
| Peru | Bosques Secos de Salitral - Huarmaca - Olmos |
| Peru | Chaparrí |
| Peru | Laquipampa |
| Peru | Las Delicias |
| Peru | Paltashaco |
| Peru | Parque Nacional Cerros de Amotape |
| Peru | Rafán |
| Peru | Santuario Histórico Bosque de Pomac |
| Peru | Talara |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Dry | major | resident |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Shrubland | Subtropical/Tropical Dry | suitable | resident |
| Shrubland | Subtropical/Tropical Moist | suitable | resident |
| Altitude | 0 - 2590 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2025) Species factsheet: Collared Antshrike Thamnophilus bernardi. Downloaded from
https://datazone.birdlife.org/species/factsheet/collared-antshrike-thamnophilus-bernardi on 02/01/2025.
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 02/01/2025.