Roraimia adusta
The Roraiman Barbtail (Roraimia adusta) is a diminutive and elusive furnariid, measuring approximately 12-14 cm in length and weighing 12-16 grams. Its plumage is predominantly a deep rufous-brown on the upperparts, contrasting with a paler, often buffy-streaked breast and belly. A subtle, dusky mask across the eye and a short, stout bill are key identification features, though its most distinctive trait is its stiff, somewhat spiny tail feathers, which are often worn, lending to its "barbtai...
Exclusively found in humid, moss-laden montane cloud forests and elfin woodlands on the slopes and summits of tepuis (table-top mountains) in the Roraima region, typically at elevations between 1,200 and 2,200 meters.
Primarily insectivorous, feeding on a diverse array of small arthropods including beetles, spiders, ants, and larvae, gleaned from bark, moss, and foliage. It occasionally supplements its diet with tiny fruits found among the epiphytes.
The Roraiman Barbtail is a diurnal and highly cryptic species, spending its days foraging alone or in pairs within the dense understory and mid-story vegetation. It employs an active foraging strategy, meticulously gleaning insects and spiders from mossy branches, epiphytes, and leaf litter, ofte...
The Roraiman Barbtail is an obligate resident of the Guiana Shield, specifically restricted to the humid montane cloud forests and elfin woodlands of the tepui formations in southeastern Venezuela, southwestern Guyana, and the extreme northern portion of Brazil (state of Roraima). Its core distri...
Vulnerable
- The "barbtail" in its name refers to the stiff, spiny shafts of its tail feathers, which are thought to aid in bracing itself against vertical surfaces while foraging. - It is considered a "tepui endemic," meaning it is found exclusively on the ancient, flat-topped mountains of the Guiana Shiel...