Buff-browed Foliage-gleaner (Syndactyla rufosuperciliata) [XC277303]
by Jeremy Minns from Intervales State Park. Residential area, Brazil (song)
Buff-browed Foliage-gleaner (Syndactyla rufosuperciliata) [XC512447]
by Franco Vushurovich from Tapichalaca NR, Zamora Chinchipe, Ecuador (song)
Subspecies
Genus sometimes merged into Philydor. Plumage, foraging behaviour and voice have suggested to some authors that it may be more closely related to Thripadectes than currently indicated in linear sequences. The taxon Syndactyla mirandae, described from central Brazil (Goiás) and subsequently treated as a subspecies of present species, is in fact a synonym of Russet-mantled Foliage-gleaner (Syndactyla dimidiata).
Proposed subspecies squamiger, described from south-eastern Brazil (Paraná), considered a synonym of nominate subspecies by subsequent authors. Proposed subspecies similis, from north-western Peru, described as like cabanisi but more olivaceous (less rufescent) above, and paler and much less heavily marked below, but these differences not apparent in specimens from within a few km of type locality.
The following 5 subspecies are recognised:
cabanisi (Taczanowski, 1875) - Andes of southern Ecuador (Cordillera del Cóndor, in Zamora-Chinchipe), Peru (Piura, Cajamarca and southern from Amazonas) and western Bolivia (south to Cochabamba).
oleaginea (Sclater, PL, 1884) - Andes from central Bolivia (southern from western Santa Cruz) south to north-western Argentina (south to La Rioja).
rufosuperciliata (Lafresnaye, 1832) - South-eastern Brazil (southern Minas Gerais and southern Espirito Santo south to Paraná).
acrita (Oberholser, 1901) - North-central Paraguay and extreme south-eastern Brazil (Santa Catarina, Rio Grande do Sul) south to north-eastern Argentina (Chaco and Misiones south to north-eastern Santa Fé and northern Buenos Aires) and Uruguay.
similis (Chapman, 1927) - Andes of extreme southern Ecuador and northern Peru (Cajamarca).
BirdLife International Species Factsheet