Ovenbirds (Furnariidae)

Short-billed Canastero (Asthenes baeri) - HBW 8, p. 310

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

Taxonomy: Siptornis baeri Berlepsch, 1906, Cosquin, Córdoba, Argentina.
Suggested by some authors as being possibly sister-species to A. pyrrholeuca on basis of plumage similarities. Others point out that voice, nest structure, plumage and tail morphology all indicate that it is part of a group, or possibly superspecies, formed by A. dorbignyi and A. berlepschi, probably with A. steinbachi and possibly with A. patagonica; in some aspects of plumage, tail structure, behaviour, voice and nest structure, all are more similar to Phacellodomus (especially P. striaticeps) and possibly better placed in that genus. Races <.. View all taxonomy...

Taxonomy: Siptornis baeri Berlepsch, 1906, Cosquin, Córdoba, Argentina.
Suggested by some authors as being possibly sister-species to A. pyrrholeuca on basis of plumage similarities. Others point out that voice, nest structure, plumage and tail morphology all indicate that it is part of a group, or possibly superspecies, formed by A. dorbignyi and A. berlepschi, probably with A. steinbachi and possibly with A. patagonica; in some aspects of plumage, tail structure, behaviour, voice and nest structure, all are more similar to Phacellodomus (especially P. striaticeps) and possibly better placed in that genus. Races chacoensis and neiffi (latter originally described as a race of A. steinbachi) perhaps no more than extremes in clinal variation, and species possibly monotypic; re-evaluation of geographical variation desirable. Three subspecies tentatively recognized.

Subspecies and Distribution:

  • chacoensis Brodkorb, 1938 - extreme SC Bolivia (SC Santa Cruz) and NW Paraguay.
  • 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.
  • neiffi (Contreras, 1980) - W Argentina (NW & C Mendoza, W Córdoba, N & C San Luis).