Family Typical Antbirds (Thamnophilidae)

Near Threatened

Narrow-billed Antwren (Formicivora iheringi)


French: Grisin à bec étroit German: Schieferameisenfänger Spanish: Hormiguerito picofino

Formicivora iheringi


, 1909,

Senhor do Bonfim, Bahia, Brazil


Relationships unclear. Extensive analysis of morphology, vocalizations and natural history indicates that it is not closely related to other members of genus, and should perhaps, pending further research, be placed in a separate monotypic genus, Neorhopias#R. Monotypic.


E Brazil in interior E Bahia and NE Minas Gerais.

Descriptive notes

11–12 cm; 1 male 8·2 g. Male is mostly dark grey; blackish-grey on wings and tail, wing-coverts and outer tail feathers tipped white; centre of throat and breast black... read more


Loudsong a countable series (e.g. 19 notes, 8 seconds) of emphatic, evenly paced, downslurred... read more


Understorey and mid-storey of tropical deciduous hill forest, from 250 m to 1050 m. In Jequié-Boa... read more

Food and feeding

Little published. Feeds on variety of insects, including orthopterans (Tettigoniidae) and adult and larval lepidopterans; probably also on... read more


Little known. Three birds had testes dormant or only slightly enlarged in Oct (Bahia) and Dec (Minas Gerais), indicating that breeding does... read more


Presumed resident.

Status and conservation

Not globally threatened. Currently considered Near Threatened, and previously, Vulnerable. Restricted-range species: present in Deciduous Forests of Bahia EBA. Uncommon... read more

Recommended citation

Zimmer, K. & Isler, M.L. (2020). Narrow-billed Antwren (Formicivora iheringi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 22 January 2020).