Southern Bahia and northern Minas Gerais, in eastern Brazil.
 
Population
Estimated population is unknown (2010) and decreasing.
Status NT
Habitat destruction and degradation through conversion to agriculture and cattle-ranching, and associated fires, is the main threat.
For more information see BirdLife International Species Factsheet.
Voice
A complex series of three high pitched phrases, the last being a trill.
Sao Francisco Sparrow (Arremon franciscanus) [XC121828]
by Dan Lane from Montes Claros, Minas Gerais, Brazil (song)
Sao Francisco Sparrow (Arremon franciscanus) [XC84417]
by Jeremy Minns from Palmeiras, Chapada Diamantina, Bahia., Brazil (song)
Subspecies
No subspecies.
Similar Species
Resembles Half-collared Sparrow (Arremon semitorquatus) which has more extensive black on breast and only the mandible yellow. It is also more extensively shaded dark grey on sides of belly. Pectoral Sparrow (Arremon taciturnus) has a complete breast band.
References
See References.