Synallaxis zimmeri
The Russet-bellied Spinetail (*Synallaxis zimmeri*) is a small, enigmatic furnariid endemic to the humid montane forests of the central Andes. Measuring around 16-17 cm (6.3-6.7 inches) in length, this species is characterized by its brownish-olive upperparts, a striking rufous crown, and prominent rufous wing-panel, contrasting with a paler, dull buffy-olive underbelly that distinctly washes to a rich russet-chestnut on the lower belly and undertail coverts – its key distinguishing field mar...
Inhabits dense undergrowth of humid montane cloud forests and forest edges, particularly favoring bamboo thickets (*Chusquea*), at elevations typically between 2,000 to 3,500 meters (6,500 to 11,500 feet).
Feeds primarily on small arthropods, including insects and spiders, which it gleans actively from foliage, twigs, and bark in the dense understory.
The Russet-bellied Spinetail is a highly active, diurnal species, typically observed singly or in pairs, often gleaning insects from dense foliage and small branches within its preferred undergrowth habitat. It exhibits a furtive nature, frequently disappearing into dense bamboo or shrubbery, mak...
The Russet-bellied Spinetail is endemic to a restricted range within the humid montane forests of the central Andes of South America. Its distribution spans southeastern Peru, specifically in the departments of Cusco and Puno, extending eastward into western Bolivia, primarily within the departme...
Near Threatened
- The Russet-bellied Spinetail is named after American ornithologist John T. Zimmer, who made significant contributions to South American ornithology. - Despite its drab overall appearance, its "russet belly" is a unique and defining field mark that helps distinguish it from other similar *Synall...