Family Typical Antbirds (Thamnophilidae)

Least Concern

Large-billed Antwren (Herpsilochmus longirostris)


French: Grisin à grand bec German: Fleckenbrust-Ameisenfänger Spanish: Tiluchí piquilargo

Herpsilochmus longirostris


, 1868,

Cuiabá, Mato Grosso, Brazil


Thought to be most closely related to H. pectoralis on basis of plumage and distribution, although vocalizations not closely similar. Monotypic.


Bolivia (locally in N Beni, N Santa Cruz) and SC & NE Brazil (C Mato Grosso E to Tocantins and Goiás, extending NE locally to S Ceará and S Piauí, and S to W Paraná and W São Paulo).

Descriptive notes

12–13 cm; 12–14 g. Male has black crown, long whitish supercilium, blackish lores edged white, thin black stripe behind eye; upperparts grey, interscapular patch... read more


Loudsong (e.g. 15 notes, 2·2 seconds) two-parted, with short abrupt notes replaced about... read more


Understorey to canopy of gallery forest, deciduous and semi-deciduous forest, and palm groves, at... read more

Food and feeding

Little published. Feeds on insects, including adult and larval lepidopterans and orthopterans; probably also on spiders. Closely associated... read more


Not well known. In Brazil, gonadal condition of birds in Paraná and S Mato Grosso suggests breeding in Sept–Dec, at beginning of... read more


Presumed resident.

Status and conservation

Not globally threatened. Uncommon to fairly common over most of its range; in Brazil, particularly common in appropriate habitat along entire length of the Transpantaneira... read more

Recommended citation

Zimmer, K. & Isler, M.L. (2020). Large-billed Antwren (Herpsilochmus longirostris). 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 24 February 2020).