Pectoral Sparrow
Arremon taciturnus
- Least concern
- Card rarity: Common
- Birds

The pectoral sparrow is a small species of New World sparrow first described in 1779 by Georges-Louis Leclerc. It has two subspecies. Like other sparrows in its family Arremon, it has pale green-to-olive wings, a distinctive black band going across its breast. It is found throughout southeastern South America, in subtropical or tropical moist lowland forests. The phenology of its breeding is unknown, however it has been observed nest building as early as August and as late as December. Incubation takes 15–17 days, however the duration of the nestling and fledgling stages are unknown due to a lack of research. It is omnivorous, mainly eating insects and seeds, and is considered a least-concern species by BirdLife International due to its large population and range.
Classification
- Class
- Aves
- Order
- Passeriformes
- Family
- Passerellidae
- Genus
- Arremon