Black-chinned Mountain-Tanager occurs on the west slope of the Andes of Colombia and Ecuador, and is most frequently encountered in small groups of up to six individuals, more occasionally alone or in pairs. They are omnivorous, usually feeding high in the canopies of wet mossy forests and edges between 900 and at least 2200 m, although this tanager occasionally ranges to lower elevations. Black-chinned Mountain-Tanager is, as its vernacular name suggests, best separated from other largely blue, yellow, and black Anisognathus mountain-tanagers by its black chin. This vibrant bird is typically quiet. Very little has been published concerning its natural history and behavior, although these are unlikely to differ substantially from other members of the genus. The name Anisognathus notabilis derives from Latin, with the generic name a compound of anisos, "unequal", and gnathus, "lower jaw", in reference to the difference in upper and lower mandible length (the birds of this genus all have a distinctive overbite); the specific epithet notabilis means notable or remarkable (Jobling 2010). In Spanish the common name is Tangara Barbinegra (Hilty 2011, de Juana et al. 2012).