Family Typical Antbirds (Thamnophilidae)

Least Concern

Chestnut-shouldered Antwren (Euchrepomis humeralis)


French: Grisin à épaules rousses German: Rotschulter-Ameisenfänger Spanish: Tiluchí hombrocastaño

Terenura humeralis

P. L. Sclater and Salvin

, 1880,

Sarayacu, Ecuador


Possible race transfluvialis was based on two individuals from a single location in W Brazil (Hyutanahan, on R Purus), but more thorough study of geographical variation required before any races can be confidently accepted. Monotypic.


E Ecuador (primarily S of R Napo), E Peru (S of R Napo), SW Amazonian Brazil (S Amazonas E to upper drainages of R Juruá, R Purus and R Madeira and N Rondônia) and NW Bolivia (Pando, N La Paz).

Descriptive notes

9·5–10·5 cm; 7–8 g. Male has black crown and nape, whitish supercilium, thin dark line through eye; back greenish-olive, rump rufous-chestnut, tail greyish-olive... read more


Loudsong a series of initially countable notes rising in pitch and shortening in length to become... read more


Canopy and subcanopy of lowland evergreen forest, to 650 m. Found in both terra firme and... read more

Food and feeding

Little published. Feeds on insects, probably also spiders; observed to take small moths (Lepidoptera), a caterpillar c. 12 mm long, and... read more


Little known. An individual observed as it gathered long strands of moss in Aug in SE Peru (Madre de Dios).


None recorded; presumed resident.

Status and conservation

Not globally threatened. Fairly common throughout most parts of its range. This includes some large protected areas, e.g. Yasuní National Park, in Ecuador, Manu National Park... read more

Recommended citation

Zimmer, K. & Isler, M.L. (2020). Chestnut-shouldered Antwren (Euchrepomis humeralis). 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 26 February 2020).