This recently described species is known from a small range, within which the extent and quality of its highly specialised habitat are declining. This combination of factors qualifies it as Vulnerable.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
10 cm. A small, sexually dichromatic antbird. Male dark grey with black throat and wing coverts (the latter fringed with white). Female has dark grey upperparts with black wing coverts (fringed reddish-brown), and underparts reddish-brown and white. Similar spp. Male lacks black crown of Black-headed Antbird P. rufifrons, and female shows strong contrast between reddish-brown of majority of the underparts and clear white belly patch, chin and throat. Voice Song a series of similar notes that decelerate in pace (especially initially).
Capparella, A. P.; Rosenberg, G. H.; Cardiff, S. W. 1997. A new subspecies of Percnostola rufifrons (Formicardiidae) from northeastern Amazonian Peru, with a revision of the rufifrons complex. Ornithological Monographs 48: 165-170.
Isler, M. L.; Alonso, J. A.; Isler, P. R.; Whitney, B. M. 2001. A new species of Percnostola antbird (Passeriformes: Thamnophilidae) from amazonian Peru, and an analysis of species limits within Percnostola rufifrons. Wilson Bulletin 113: 164-176.
Further web sources of information
Explore HBW Alive for further information on this species
Text account compilers
Benstead, P., Harding, M., Sharpe, C J, Symes, A.
Alonso Alvarez, J.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2016) Species factsheet: Percnostola arenarum. Downloaded from http://www.birdlife.org on 29/07/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/07/2016.
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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Additional resources for this species
|Current IUCN Red List category||Vulnerable|
|Species name author||Isler, Alvarez Alonso, Isler & Whitney, 2001|
|Population size||600-1700 mature individuals|
|Distribution size (breeding/resident)||7,700 km2|
|Links to further information|
|- Additional Information on this species|