South-eastern Colombia (eastern Cauca, western Caquetá, western Putumayo), eastern Ecuador and eastern Peru (north of R Marañón and R Amazon), possibly extending eastern into Brazil (Amazonas north of R Solimíµes). Considered by some authors to be a subspecies of Undulated Antshrike (Frederickena unduliger).
Fulvous Antshrike (Frederickena fulva) [XC322055]
by Diego Calderon-F. from Nuevo Mundo, Resguardo Ind\u00edgena Jard\u00edn de la Sierra, Orito, Putumayo, Colombia (song)
Fulvous Antshrike (Frederickena fulva) [XC395610]
by Brayan Coral Jaramillo from Rio Bigal Biological Reserve, Orellana, Ecuador (song)
Subspecies
Considered by some authors to be a subspecies of Undulated Antshrike (Frederickena unduliger).