email a friend
printable version
VU
Striated Softtail Thripophaga macroura

Justification
This has recently been discovered at a number of new locations. Nevertheless it has a small range (and presumably a small population) and remaining habitat is fragmented and continuing to decline in quality (Collar et al. 1992), so it consequently qualifies as Vulnerable.

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
18 cm. Streaked, rufous-brown, furnarid. Rufous-brown upperparts, with rufous-chestnut wings and contrasting bright cinnamon tail. Crown and mantle streaked buff. Indistinct, buffy-white supercilium. Brown underparts with narrow white streaks. Orange throat patch. Similar spp. May associate with Pale-browed Treehunter Cichlocolaptes leucophrus but this species is larger, with heavier bill, more distinct supercilium and broader streaking below. Voice Soft, high-pitched trill ending in a few emphasised notes and a trill. Also series of strident tchik notes.

Distribution and population
Thripophaga macroura occurs in the Atlantic forest region of south-east Brazil, from Bahia south of Salvador through east Minas Gerais to Espírito Santo and north Rio de Janeiro. Formerly known from just seven locations it has recently been found in a number of new localities: forests between Ituberá and Camamu; Usina Paineiras; Serra Bonita Private Reserve (RPPN) (B. Whitney and J. F. Pacheco in litt. 2003); Una Biological Reserve (R. Laps in litt. 2003) and two sites in the Jequitinhonha valley (Ribon et al. 2004). It may well occur in all the remaining lowland forest in southern Bahia. It is locally not uncommon, but occurs very patchily and is apparently absent from large areas of mature forest where vine-tangles are scarce.

Population justification
The population is estimated to number 2,500-9,999 individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals.

Trend justification
A moderate and on-going population decline is suspected, owing to rates of habitat loss.

Ecology
It inhabits the interior of humid, primary and little-disturbed forest, but also occurs along forest edge and in degraded and secondary forest up to 1,000 m, where it appears to be closely associated with subcanopy vine-tangles. Although seemingly able to tolerate some degree of disturbance, it appears unable to survive in young secondary growth and other non-forest habitats. Birds forage in dense vine-tangles from c.2.5-7 m above ground, gleaning arthropods from vines, twigs, branches and sometimes leaves. Nesting has been reported in August-January (Mazar Barnett and Kirwan 2004). The relatively small territories (less than 1.5 ha) encompass a number of large, vine-covered trees.

Threats
Widespread and continuing habitat destruction has severely fragmented this species's range. Although it has been observed in degraded forest, it may be dependent on the presence of dense vine-tangles, which are likely to occur only in little-disturbed and mature secondary forests.

Conservation Actions Underway
It is protected under Brazilian law. Populations exist in four protected areas: Sooretama Biological Reserve, Serra Bonita Private Reserve (B. Whitney and J. F. Pacheco in litt. 2003), Una Biological Reserve (R. Laps in litt. 2003) and Desengano State Park, although the numbers recorded are low. Its apparent absence from the Linhares Forest Reserve, adjacent to Sooretama, is surprising, and a further indication of its apparent patchy distribution. Conservation Actions Proposed
Survey suitable habitat to locate additional populations. Monitor known populations. Ensure continued protection of the four reserves where it occurs. Protect other key sites for the species.

References
Collar, N. J.; Gonzaga, L. P.; Krabbe, N.; Madroño Nieto, A.; Naranjo, L. G.; Parker, T. A.; Wege, D. C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. International Council for Bird Preservation, Cambridge, U.K.

Mazar Barnett, J. and Kirwan, G.M. 2004. Notes on the nest of the striated softtail (Thripophaga macroura), with comments on a nest of plain softtail (T. fusciceps) and relationships of the genus based on nest architechture. Ornitologia Neotropical 15(2): 257-263.

Ribon, R.; de Mattos, G. T.; Ribeiro Luiz, E.; de Castro Morais, F.; de Andrade, R.N.; Resende, F.C.; de Melo, F.; Chiarello, A. G.; Abreu, C. R.M. 2004. Avifauna da floresta ombrófila densa do vale do Jequituinhonha, nordeste de Minas Gerais. Resumos XII Congreso Brasileiro de Ornitologica, pp. 345. Universidade Regional de Blumenau, Blumenau, Brazil.

Further web sources of information
Detailed species account from the Threatened birds of the Americas: the BirdLife International Red Data Book (BirdLife International 1992). Please note taxonomic treatment and IUCN Red List category may have changed since publication.

Detailed species account from the Threatened birds of the Americas: the BirdLife International Red Data Book (BirdLife International 1992). Please note, taxonomic treatment and IUCN Red List category may have changed since publication.

Explore HBW Alive for further information on this species

Recuento detallado de la especie tomado del libro Aves Amenazadas de las Americas, Libro Rojo de BirdLife International (BirdLife International 1992). Nota: la taxonomoía y la categoría de la Lista Roja de la UICN pudo haber cambiado desde esta publicación.

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

Text account compilers
Benstead, P., Clay, R., Sharpe, C J, Symes, A., Williams, R.

Contributors
Laps, R., Lima, P., Olmos, F., Pacheco, J., Whitney, B.

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

Recommended citation
BirdLife International (2014) Species factsheet: Thripophaga macroura. Downloaded from http://www.birdlife.org on 16/09/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 16/09/2014.

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 Vulnerable
Family Furnariidae (Ovenbirds)
Species name author (Wied, 1821)
Population size 1500-7000 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 6,000 km2
Country endemic? Yes
Links to further information
- Additional Information on this species