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Sincora Antwren Formicivora grantsaui
BirdLife is updating this factsheet for the 2016 Red List
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This recently described species is listed as Near Threatened because, although it has a very small range, in which it is known from only four locations, there are no major threats that are understood to be driving a population decline or significantly impacting the extent and quality of habitat, although improved knowledge regarding the impact of fires may warrant uplisting of the species in the future.

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

Taxonomic note
Formicivora grantsaui was described as new to science by Gonzaga et al. (2007) and is recognised as a species following SACC (2008).

A typical long-tailed antwren of the genus Formicivora (Gonzaga et al. 2007). The crown, back and rump are darkish brown. In males, the sides of the head (including the lores) and underparts from chin to belly are black, bordered by a white stripe going down from above the lores to the sides of the belly through the sides of the neck and breast. The lower belly and crissum are grey. Flanks are pale brown. Brown wing feathers have whitish edges on the inner webs. Upperwing coverts are black with white terminal spots. Tail feathers also have white tips. Iris brown. Bill black, with basal half of mandible grey in females. Females also differ by having slightly paler upperparts, and head and underparts white with black streaks. Legs and toes plumbeous grey; soles yellowish. Similar spp. F. rufa is paler and rufescent above with a yellowish buff tinge to the lower flanks. Voice F. grantsaui has a distinctive two-part alarm call containing more than two (rarely only two) notes. It also utters a very short and distinctively modulated territorial duet. The repetitive loudsong is similar to that of congeners (Gonzaga et al. 2007).

Distribution and population
Formicivora grantsaui is known only from the Serra do Sincorá in the Espinhaço Range, Diamantina region, Bahia, Brazil (Gonzaga et al. 2007). It was first collected in 1965 at Igatu, but was not described as a new species because there was a lack of other specimens and supporting biological data. After a number of independent observations of a possibly new taxon of antwren in the region, it was observed and tape recorded in January 1997, prompting a return to the area to collect specimens in 1999. Additional data and specimens were collected during a targeted expedition in November 2002. It is so far known from four localities: Morro do Pai Inácio, rio Ribeirão valley, Vale do Paty and near Igatu, and the valley of the rio Cumbuca and other sites around the town of Mucugê (Gonzaga et al. 2007). It is described as locally common (C. Albano in litt. 2010).

Population justification
The population size has not been quantified and further research is required.

Trend justification
The population is suspected to be stable in the absence of any serious and immediate threats that are understood to affect the species and its habitat.

The species inhabits scrubby vegetation (campos rupestres) around rocky outcrops, on the slopes of stream valleys or high plateaus and at exposed ridges, at 850-1,100 m (Gonzaga et al. 2007). Like its congeners, it almost certainly feeds primarily on invertebrates.

The protection of part of the species's range has allowed the recovery of vegetation from mining activities and direct exploitation; however, the species's habitat remains potentially affected by fires (Gonzaga et al. 2007), which can be serious (C. Albano in litt. 2010), although further study is required to assess their impacts on the species itself.

Conservation Actions Underway
A fraction of the species's known range is protected by the Marimbu/Iraquara State Environmental Protection Area and the Chapada Diamantina National Park, which was designated in 1985 (Gonzaga et al. 2007). Conservation Actions Proposed
Survey the region to search for new localities and to obtain a population estimate. Monitor the population. Monitor the extent and condition of habitat. Increase the area of occupied and suitable habitat that is protected. Carry out measures to reduce the incidence and impacts of fires. Encourage ecotourism around this species and link this to local livelihoods.

Gonzaga, L. P.; Carvalhaes, A. M. P.; Buzzetti, D. R. C. 2007. A new species of Formicivora antwren from the Chapada Diamantina, eastern Brazil (Aves: Passeriformes: Thamnophilidae). Zootaxa 1473: 25-44.

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

View photos and videos and hear sounds of this species from the Internet Bird Collection

Text account compilers
Sharpe, C J, Taylor, J.

Albano, C.

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

Recommended citation
BirdLife International (2016) Species factsheet: Formicivora grantsaui. Downloaded from on 25/10/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from on 25/10/2016.

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.

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 Gonzaga, Carvalhaes & Buzzetti, 2007
Population size Unknown mature individuals
Population trend Stable
Distribution size (breeding/resident) 3,300 km2
Country endemic? Yes
Links to further information
- Additional Information on this species