A thrush approximately 21 cm (8.3 in) long, characteristic of the Yungas and mountainous environments of northwestern and central Argentina. It exhibits pronounced sexual dimorphism. The male has a blackish to black head that contrasts sharply with the slate-gray back. The throat is whitish with conspicuous black streaking, while the underparts are pale gray to grayish-cream, becoming whiter toward the belly. The bill, eye-ring, and legs are yellowish-orange. The female is considerably browner, with an olive-brown back, an ochraceous throat marked with dark streaks, and grayish-yellow to whitish underparts. Juveniles resemble the female but have a scaled appearance and warmer orange-buff tones. It may be confused primarily with the Glossy-black Thrush (Turdus serranus), especially females and juveniles. However, that species is larger and more uniformly colored. The male is entirely glossy black, while the female has dark legs and a less contrasting throat. It may also occur locally alongside the Chiguanco Thrush (Turdus chiguanco) in more open montane habitats, but it differs by the striking contrast between the male´s black head and gray back, as well as by its preference for wetter, more forested environments. Until a few years ago, it was considered conspecific with the Eastern Slaty Thrush (Turdus subalaris), which inhabits the Atlantic Forest and eastern South America. Today, both are recognized as separate species based on vocal, morphological, ecological, and biogeographical differences.
Geographic distribution: It occurs along the eastern slopes of the Andes from southern Ecuador and Peru through Bolivia to northwestern Argentina. In Argentina it is found mainly in the Yungas of Jujuy, Salta, Tucumán, and Catamarca, also reaching the Serrano Chaco of Córdoba and San Luis, with occasional records from La Rioja, San Juan, and Mendoza. There are also isolated observations in more eastern regions of the country, whose status requires further study and may be related to dispersal movements or exceptional migratory events. It occurs from approximately 50 to 2,100 m (164–6,890 ft) above sea level, occasionally reaching higher elevations. During the breeding season, it primarily occupies the upper elevations of the Yungas and the Serrano Chaco.
It has a complex migratory pattern. Most Argentine populations are migratory and leave their breeding areas during autumn, moving north into Bolivia and Peru. After breeding, many individuals first descend to lower elevations of the Yungas, where they remain temporarily before beginning migration. In spring, they return in small groups to the Yungas foothills, taking advantage of the abundant fruit supply before gradually ascending to the upper montane forests where breeding takes place. During these movements, they may also use habitats within the Serrano Chaco and western Chaco. However, some individuals remain in the Argentine Yungas throughout the winter, suggesting that certain populations may be partially resident.
Habitat: It primarily inhabits montane rainforests, humid montane forests, and wooded ravines of the Yungas, as well as sectors of the Serrano Chaco. It frequents densely forested habitats, forest edges, humid ravines, and areas near streams, where it usually remains concealed within the vegetation. It mainly uses the middle and upper forest strata and is heard far more often than it is seen.
Diet: Omnivorous. It feeds mainly on fruits, insects, larvae, earthworms, and other invertebrates. It forages alone or in pairs both in the foliage and on the ground, although it often remains perched high in trees, making short flights or descending briefly to capture prey. Fruits make up an important part of its diet, especially outside the breeding season.
Behavior: Usually solitary or found in pairs, although it may be seen in small groups during migration. It is a remarkably elusive species that is heard much more frequently than observed, spending much of its time hidden within the dense foliage of the middle and upper forest canopy. It arrives in the Argentine Yungas at the beginning of spring, initially occupying the foothills before gradually moving upslope to the higher elevations where breeding occurs. Males begin singing immediately after arrival, even before breeding territories are established. During spring and early summer, it becomes extremely vocal, and its song is one of the most characteristic components of the soundscape of the Yungas montane forest, often dominating the dawn chorus in many areas (pers. obs.). The song consists of a series of whistles, trills, and high-pitched, somewhat harsh notes delivered from concealed perches within the forest. It also gives a variety of harsh, rasping contact calls.
Breeding: It breeds mainly between October and February. It builds an open cup-shaped nest made of plant fibers, mud, mosses, and lichens, usually placed 3–6 m (10–20 ft) above the ground in trees or shrubs. The clutch consists of two or three bluish or greenish-blue eggs marked with reddish-brown spots and speckles, mostly concentrated toward one pole.
Conservation status: Classified as Not Threatened (NA) at the national level and as Least Concern (LC) globally. Although its distribution is relatively restricted to Andean montane forests, it may be locally common in suitable habitats. The loss and fragmentation of the Yungas represent its main potential threat.
Author of this compilation: María Belén Dri and Diego Carús – 07/15/2026