We report the presence of the Slaty-backed Nightingale-Thrush (Catharus fuscater) in Colombia's Central Cordillera, at two sites near the cities of Pereira and Manizales, at elevations of 2400–2600 m. This species is discontinuously distributed in humid montane forest in Costa Rica and Panama, and in the Andes from Colombia to Peru. In Colombia, it was previously known only from the northern end of the western Andean range, the Santa Marta and Perijá mountains, and spottily on the eastern range of the Andes. Our record fills a gap in its distribution and suggests that it may be widely distributed in all three ranges of the Colombian Andes, although its distribution may be disjunct. At Ucumarí Regional Park near Pereira, the species was found in wet second growth and the understory of 40-yr-old forest. Patterns of recaptures suggested that some individuals were sedentary residents, while others were probably temporary residents or floaters. Reproduction was concentrated in February–June, and molting in August–December. Slaty-backed Nightingale-Thrushes at Ucumarí are olive-brown instead of slaty gray, and have brown irises, not white as in other populations. The disjunct distribution of this species probably has resulted in geographic variation and differentiation.