Saffron-billed Sparrow Arremon flavirostris


Taxonomic note
Arremon flavirostris has been split into Saffron-billed Sparrow A. flavirostris and Stripe-crowned Sparrow A. dorbignii following the evidence of genetic separation and after comparison of museum specimens revealed that dorbignii differs by its; grey central crown-stripe vs none or just a grey nuchal patch (3); white vs black preocular supercilium (2); narrower breast-stripe (somewhat variable in other taxa; hence only 1); different song (at least 1).

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2019. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 4. Available at:
Trujillo-Arias, N., Dantas, G. P., Arbeláez-Cortés, E., Naoki, K., Gómez, M. I., Santos, F. R., ... & Cabanne, G. S. 2017. The niche and phylogeography of a passerine reveal the history of biological diversification between the Andean and the Atlantic forests. Molecular phylogenetics and evolution 112: 107-121.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2019 Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 2,500,000
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 3.8 - - -

Population justification: The global population size has not been quantified, but this species is described as 'fairly common' relative to other neotropical birds (Gunningham and Slager 2015).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats (Jaramillo 2019). There is tentative evidence to suggest that the Saffron-billed Sparrow flourishes in patchy and/or disturbed and logged forest as result of its preference for edge habitats and small clearings (Miranda et al. 2010, Gunningham and Slager 2015).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Brazil N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Dry major resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane suitable resident
Shrubland Subtropical/Tropical Dry major resident
Shrubland Subtropical/Tropical Moist suitable resident
Altitude 0 - 1400 m Occasional altitudinal limits  

Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - Non-trivial Recent

Recommended citation
BirdLife International (2020) Species factsheet: Arremon flavirostris. Downloaded from on 26/05/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from on 26/05/2020.