The Yungas sparrow is a species of bird in the family Passerellidae endemic to the Southern Andean Yungas of southeastern Bolivia and northwestern Argentina. It was formerly considered a subspecies of what was then called the stripe-capped sparrow.
Region
Andes Mountains
Typical Environment
Occurs in the Southern Andean Yungas of southeastern Bolivia and northwestern Argentina, favoring humid montane forest, forest edge, and dense secondary growth. It often occupies bamboo thickets, shrubby clearings, and edges along streams and roads. The species uses a mosaic of natural and regenerating habitats, provided there is thick ground and mid-story cover. It can persist near human-modified landscapes where patches of native understory remain.
Altitude Range
800–3000 m
Climate Zone
Subtropical
Ease of Keeping
Beginner friendly: 1/5
This sparrow is confined to the humid montane forests known as the Southern Andean Yungas of Bolivia and Argentina. It was long treated as part of the “stripe-capped sparrow” complex before being split on differences in voice, genetics, and subtle plumage. It tends to skulk in dense understory and bamboo, making it more often heard than seen. Its song is a simple, tinkling series of notes delivered from low perches along forest edges and clearings.
Temperament
shy and skulking
Flight Pattern
short rapid wingbeats, low over understory
Social Behavior
Typically found singly or in pairs during the breeding season, and in small family groups at other times. It forages on or near the ground, often under dense cover. Nests are cup-shaped and placed low in shrubs or tangles; pairs are presumed monogamous during the breeding season.
Migratory Pattern
Resident
Song Description
A simple, tinkling series of clear notes and trills, often delivered from a low perch at forest edge. Calls include sharp chips and thin tseet notes used for contact in dense cover.
