Tepui Redstart Myioborus castaneocapilla Scientific name definitions

The Tepui Redstart is a distinctive warbler endemic to isolated highlands of northern South America.  Common in montane forest and edge habitats from 1200 to 2200 meters in elevation, this redstart is found only on tepui mountains in Venezuela and adjacent mountains of Guyana and Brazil.  The species is olive-gray above with a rufous cap, yellow underparts, and a black tail marked with white outer rectrices; within its range, it does not overlap with other redstarts except for the rather dissimilar Slate-throated Redstart.  Tepui Redstart sings an accelerating song of high notes that descends in pitch, and is rather straightforward to detect both aurally and visually.

13 cm; 7·5–12 g (1 Lentino, M., L. Pérez, G. Barrowclough, and P. Sweet (1998). Notas sobre las aves de la cima del Auyantepuy, Parque Nacional Canaima, estado Bolívar, Venezuela. Acta Terramaris 11:1–12. Close ). Nominate race has grey head with rufous crown patch  , indistinct pale grey supraloral stripe and narrow whitish eye-crescents; upperparts grey with olive tinge; tail black, extensive white in outer two rectrices, large white spot at tip of adjacent inner rectrix; throat  and underparts  yellow, white undertail-coverts; iris dark; bill blackish; legs dusky grey to blackish. Differs from similar M. brunniceps in having eye-crescents and supraloral line less distinct, upperparts more olive-grey and without olive patch on mantle, and rufous crown patch less extensive. Sexes similar. Juvenile undescribed. Race duidae is considerably brighter than others, with rich orange-yellow underparts, more conspicuous supraloral stripe and eye-crescents, and purer grey upperparts; maguirei has paler yellow underparts and more conspicuous eye-crescents than nominate.

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Editor's Note: Additional distribution information for this taxon can be found in the 'Subspecies' article above. In the future we will develop a range-wide distribution article.

Song  a thin, unmusical trill, accelerating towards while dropping in pitch; call  a fairly sharp "tsip".