Family Ovenbirds (Furnariidae)

Least Concern

Short-billed Canastero (Asthenes baeri)


French: Synallaxe à bec court German: Kurzschnabelcanastero Spanish: Canastero chaqueño

Siptornis baeri


, 1906,

Cosquín, Córdoba, Argentina


Voice, nest structure, plumage and tail morphology all indicate that this species is part of a group formed by A. dorbignyi and A. berlepschi. Races chacoensis and neiffi perhaps no more than extremes in clinal variation, and species may be better treated as monotypic; reassessment needed. Three subspecies tentatively recognized.

Subspecies and Distribution
  • A. b. chacoensis Brodkorb, 1938 – extreme SC Bolivia (SC Santa Cruz) and NW Paraguay.
  • A. b. baeri (Berlepsch, 1906) – S Bolivia (E Tarija), W Paraguay, N & C Argentina (Salta, W Formosa and W Corrientes S to E Mendoza, La Pampa, NE Río Negro and S Buenos Aires), extreme SE Brazil (SW Rio Grande do Sul) and W Uruguay.
  • A. b. neiffi (Contreras, 1980) – W Argentina (NW & C Mendoza, W Córdoba, N & C San Luis).
  • Descriptive notes

    14–15 cm; 10–18 g. Rather pale, plain, short-billed canastero, in many ways more similar in plumage to sympatric Phacello­domus sibilatrix... read more


    Song a few introductory notes followed by long, fast trill of mechanical, dry notes; terminal trill... read more


    Arid lowland scrub; Chaco scrub and woodland, and monte woodland; from sea-level up to... read more

    Food and feeding

    Recorded items include ants, Orthoptera (including Acrididae), Diptera, Coleoptera (including Cerambycidae), Hymenoptera, Dermaptera.... read more


    Season during austral spring-summer; eggs in Oct–Jan and nestlings in Oct. Presumably monogamous. Nest an oval mass c. 24–35 ×... read more



    Status and conservation

    Not globally threatened. Uncommon to fairly common. Occurs in several protected areas. Habitat occupied by this species is subject to at least moderate disturbance and... read more

    Recommended citation

    Remsen, J.V., Jr (2019). Short-billed Canastero (Asthenes baeri). 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 13 December 2019).