Pectoral Sparrow

Open encyclopedia reference

The pectoral sparrow (Arremon taciturnus) 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 (in subspecies nigrirostris the band is not continuous and instead breaks in the center). 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.

Wikipedia contributors, Pectoral sparrow; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T05:33:51.213412+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Arremon taciturnus (Hermann, 1783)

Name authority

(Hermann, 1783)

Common name

Pectoral Sparrow

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Passeriformes

Family

Passerellidae

Genus

Arremon

Extinction status

Recorded extant

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumOsteichthyes
7. megaclassTetrapoda
8. classAves
9. orderPasseriformes
10. familyPasserellidae
11. genusArremon Vieillot, 1816
12. speciesArremon taciturnus (Hermann, 1783)

Close classified relatives

These entries share the source’s genus, Arremon. They are not necessarily the closest relatives established by molecular evidence.

Browse 100 records assigned to Passerellidae.

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=558751 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:67T86. Classification follows source parent identifiers. English common names may vary by region.