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Slaty Thrush Turdus nigriceps
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This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Taxonomic source(s)
SACC. 2006. A classification of the bird species of South America. Available at: #

Taxonomic note
Turdus nigriceps and T. subalaris (Sibley and Monroe 1990, 1993) have been lumped into T. nigriceps following SACC (2005).

Distribution and population
Turdus nigriceps occurs as two subspecies: nigriceps in the Andes of Ecuador, Peru, Bolivia and Argentina; and subalaris in eastern Paraguay, Brazil and northern Argentina.

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

Trend justification
The population is suspected to be in decline owing to ongoing habitat destruction and degradation.

This species is found in the canopy and borders of subtropical humid forest, and in secondary woodland and eucalyptus plantations with native undergrowth, where it tends to be found in dense shrubbery along streams and in wooded ravines (Collar 2005). Subspecies nigriceps occurs mainly from 500-2000 m, locally to 2550 m in Bolivia, whereas subalaris is found in lower areas from sea-level to 1000 m and inhabits araucaria groves, gardens with scattered large trees and park-like areas in addition to the aforementioned habitat types (Collar 2005).

The nominate subspecies is suspected to have been affected to some degree by the extensive deforestation of recent decades (Collar 2005).

Collar, N. J. 2005. Family Turdidae (Thrushes). In: del Hoyo, J., Elliott, A. and Christie, C. (eds), Handbook of birds of the world Vol. 10, pp. 514-807. Lynx Edicions, Barcelona, Spain.

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Temple, H.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2016) Species factsheet: Turdus nigriceps. Downloaded from on 21/10/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from on 21/10/2016.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

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To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Least Concern
Family Turdidae (Thrushes)
Species name author Cabanis, 1874
Population size mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 865,000 km2
Country endemic? No
Links to further information
- Additional Information on this species