Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, Suriname, Venezuela.
Population
Estimated population is 500,000 - 4,999,999 (2013) and stable.
Ruddy Foliage-gleaner (Clibanornis rubiginosus) [XC880038]
by Micah Riegner from Finca Rubel Chaim, Alta Verapaz, Guatemala (song)
Ruddy Foliage-gleaner (Clibanornis rubiginosus) [XC260696]
by Olaf Jahn from Napo: Tena, Ecuador (song)
Subspecies
Automolus rubiginosus (Sibley and Monroe 1990, 1993) has been split into Ruddy Foliage-gleaner (Clibanornis rubiginosus) and Santa Marta Foliage-gleaner (Clibanornis rufipectus) following SACC (2009).
No obvious sister-species in genus. Vocal and substantial morphological differences between Guianan Shield subspecies obscurus and other subspecies suggest that at least two species are involved. Vocalizations of many of the distinctive subspecies are unknown. Black-tailed subspecies nigricauda and saturatus formerly considered to represent a separate species.
Proposed subspecies umbrinus, described (from Guatemala) as like nominate but paler and redder above and paler below, considered to be not reliably distinguishable from veraepacis and synonymized with it by most authors. In addition, that broader taxon thought by some to be possibly indistinguishable from nominate. Supposed characters of proposed subspecies moderatus, described from single specimen from northern Peru, evidently represent individual variation within highly variable watkinsi. Proposed species Automolus xanthippe (western Panama) considered a synonym of fumosus. Racial identity of birds in south-western Venezuela (Apure) uncertain; tentatively assigned to cinnamomeigula. Recent specimens from Amazonian north-eastern Peru (away from Andes) are small, and dark below, much like geographically distant obscurus and believed possibly to represent an undescribed taxon.
rubiginosus (Sclater, 1857) - Mountains of eastern Mexico (Veracruz).
veraepacis (Salvin & Godman, 1891) - Mountains from southern Mexico (eastern Oaxaca, Chiapas) and Guatemala east to northern Nicaragua.
fumosus (Salvin & Godman, 1891) - Mountains of extreme south-western Costa Rica and western Panama (Chiriquí, San Blas).
saturatus (Chapman, 1915) - Highlands of extreme eastern Panama (Darién) and north-western Colombia (Antioquia).
rufipectus Bangs, 1898 - Santa Marta Mts, in northern Colombia. Considered by some authors to be a distinct species, Santa Marta Foliage-gleaner (Clibanornis rufipectus).
nigricauda (Hartert, 1898) - Western Colombia (Baudo Mts, and foothills of western Andes) south to western Ecuador (south to El Oro) and narrowly to northern Peru (Tumbes).
sasaimae (Meyer de Schauensee, 1947) - Eastern Andes of Colombia (western slope in Boyacá and Cundinamarca).
cinnamomeigula (Hellmayr, 1905) - South-western Venezuela (Apure) and foothills of eastern Colombian Andes (Meta).
caquetae (Meyer de Schauensee, 1947) - Foothills of eastern Andes in southern Colombia (Nariño, Caquetá, Putumayo) and north-eastern Ecuador (Sucumbíos).
brunnescens (Berlioz, 1927) - Foothills from eastern Ecuador (southern from Napo) south to north-eastern Peru (Amazonas).
watkinsi (Hellmayr, 1912) - Andean foothills from northern Peru (San Martín) south to northern Bolivia (La Paz), also extreme south-western Brazil (Acre).
venezuelanus (Zimmer, JT & Phelps, 1947) - Tepui region of southern Venezuela (Bolívar, Amazonas).
obscurus (Pelzeln, 1859) - The Guianas and north-eastern Brazil.