Family Ovenbirds (Furnariidae)


Russet-bellied Spinetail (Synallaxis zimmeri)


French: Synallaxe de Zimmer German: Rostbauch-Dickichtschlüpfer Spanish: Pijuí de Ancash

Synallaxis zimmeri


, 1957,

near Colcabamba, Casma, Ancash, 2800 m, western Andes of central Peru


DNA data#R show this species to be sister to S. stictothorax, with S. hypochondriaca sister to that pair. Monotypic.


W slope of W Peruvian Andes in W La Libertad and N Ancash (Cordillera Negra).

Descriptive notes

13 cm; 12–14 g. One of the most atypical species in the genus in terms of plumage and tail structure. Has blackish loral area, slightly paler auriculars, broken whitish... read more


Song a nasal “quick-quick” or “cue-quec”, c. 1 second long, repeated at... read more


Arid montane scrub 1–3 m tall, usually thorny, with occasional isolated short trees, often at... read more

Food and feeding

Contents of 8 stomachs consisted of c. 70% arthropods, predominantly winged insects and spiders, and 30% seeds and plant material by volume... read more


Nestlings in May. Monogamous. Nest a globular mass c. 25–30 cm in diameter, of interwoven thorny twigs, upward-slanting lateral... read more



Status and conservation

ENDANGERED. Restricted-range species: present in Peruvian High Andes EBA. Uncommon to locally abundant within very small range. Total population crudely estimated at 1000... read more

Recommended citation

Remsen, J.V., Jr & Sharpe, C.J. (2019). Russet-bellied Spinetail (Synallaxis zimmeri). 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 7 December 2019).