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Spot-breasted Antvireo Dysithamnus stictothorax

Justification
This species is listed as Near Threatened as it is suspected to be declining moderately rapidly owing to ongoing habitat loss and degradation within its small range.

Taxonomic source(s)
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.

Identification
Size: 12 cm. Summary: A decorative small chunky Antbird. Id: Olive above, wings dusky with white spots on the covert tips; grey head with indistinct post-ocular stripe of white dots. Underparts pale yellow, whitish on throat and grey spotting on chest. Female has rufous not grey crown. Similar: Plain Antvireo D. mentalis is pale grey below, lacks spotting on face and chest. Hints: Often found with mixed species flocks. Voice: Song a series of loud accelerating musical notes (longer, less abrubt and run together than that of Plain Antvireo; also an often repeated querulous "wurr".

Distribution and population
Dysithamnus stictothorax occurs in south-east Brazil (Bahia south to Santa Catarina) and north-east Argentina (Misiones, from where there are only three records). It can be common within the appropriate forest habitats (Ridgely and Tudor 1994, Parker et al. 1996).

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

Trend justification
Although data on trends are lacking, populations are suspected to be declining in line with rates of habitat loss and degradation within the range.

Ecology
It inhabits tropical lowland evergreen and montane evergreen forest with vines at elevations up to 1,200 m (Sick 1993, Ridgely and Tudor 1994, Parker et al. 1996).

Threats
Agricultural conversion and deforestation for mining and plantation production historically threatened its lowland forests. Current key threats are urbanisation, industrialisation, agricultural expansion, colonisation and associated road-building (Dinerstein et al. 1995, Fearnside 1996).

Conservation Actions Underway
Conservation Actions Proposed
Monitor population trends at known sites to determine rates of decline. Conduct studies to determine whether this species is tolerant of habitat degradation, or fully dependent on primary habitats. Ensure the protection of remaining primary forest habitats within the range.

References
Dinerstein, E.; Olson, D. M.; Graham, D. J.; Webster, A. L.; Primm, S. A.; Bookbinder, M. P.; Ledec, G. 1995. A conservation assesssment of the terrestrial ecoregions of Latin America and the Caribbean. World Bank, Washington, D.C.

Fearnside, P. 1996. Brazil. In: Harcourt, C.S.; Sayer, J.A. (ed.), The conservation atlas of tropical forests: the Americas, pp. 229-248. Simon & Schuster, New York and London.

Parker, T. A.; Stotz, D. F.; Fitzpatrick, J. W. 1996. Ecological and distributional databases. In: Stotz, D.F.; Fitzpatrick, J.W.; Parker, T.A.; Moskovits, D.K. (ed.), Neotropical bird ecology and conservation, pp. 113-436. University of Chicago Press, Chicago.

Ridgely, R. S.; Tudor, G. 1994. The birds of South America. University of Texas Press, Austin, Texas.

Sick, H. 1993. Birds in Brazil: a natural history. Princeton University Press, Princeton.

Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.

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
Butchart, S., Gilroy, J., Sharpe, C J

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

Recommended citation
BirdLife International (2014) Species factsheet: Dysithamnus stictothorax. Downloaded from http://www.birdlife.org on 18/09/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/09/2014.

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.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

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 Near Threatened
Family Thamnophilidae (Antbirds)
Species name author (Temminck, 1823)
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 415,000 km2
Country endemic? No
Links to further information
- Additional Information on this species