Family Ovenbirds (Furnariidae)

Least Concern

Rufous-tailed Xenops (Microxenops milleri)


French: Microxénops à queue rousse German: Rotschwanz-Baumspäher Spanish: Picolezna colirrufo

Microxenops milleri


, 1914,

foot of Mount Duida, 700 feet [c. 210 m], Amazonas, Venezuela


Previously placed in Xenops, but genetic study#R indicates that it is closest to Pygarrhichas and Ochetorhynchus, and basal to them#R, so now returned to its original monotypic genus. Differs from Xenops in bill not being laterally compressed and wedge-shaped, in lacking black in tail and pale malar mark, and also in leg colour, but shares the conspicuous wingband. Monotypic.


SE Colombia (S from Meta and Vaupés), S Venezuela (Amazonas, S Bolívar), S Guyana#R, Suriname and French Guiana S to Amazonian Brazil (S to N Rondônia and SW Pará), E Ecuador, E Peru and NW Bolivia (Pando, extreme NW La Paz).

Descriptive notes

10–11 cm; 12–13 g. Tiny furnariid, more like a miniature Heliobletus contaminatus than like its congeners. Has buff supercilium with dark flecking above... read more


Song a very fast, high, ascending trill, becoming louder, then fading and descending, duration c. 2... read more


Tropical lowland and flooded evergreen forest; mainly terra firme, locally also várzea... read more

Food and feeding

Arthropods; Orthoptera recorded. Usually seen singly, in mixed-species flocks, in canopy and subcanopy. Rapidly hitches along slender... read more


No information.



Status and conservation

Not globally threatened. Rare to locally fairly common. Patchy distribution probably at least in part an artifact of difficulty in detection. Occurs in numerous protected... read more

Recommended citation

Remsen, J.V., Jr (2020). Rufous-tailed Xenops (Microxenops milleri). 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 25 February 2020).