Arremon flavirostris
Silhouette: Juan Camilo Cepeda-Duque · PhyloPic
In 3 days ~10% in a week ~20%
The saffron-billed sparrow (Arremon flavirostris) is a species of bird in the family Passerellidae, the New World sparrows. It is found in Argentina, Bolivia, Brazil, and Paraguay. The saffron-billed sparrow has two subspecies, the nominate Arremon flavirostris flavirostris and the "gray-backed" A. f. polionotus.
The saffron-billed sparrow's name comes from its "striking orange bill". The adult male's head is mostly black, with a white supercilium from above the eye to the back of the head. The neck is gray and the back, wings, and tail are green. Its underside is white with grayish edges and a narrow black band across the upper chest. The adult female is similar but duller overall. The female's underparts are buffy with brown flanks. Juveniles are similar to the adults but duller. The species' length is from 15 to 16.5 cm (5.9 to 6.5 in). The mean weights of 27 specimens from... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 2 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 3 | Iguazú National Park | 🇦🇷 Argentina | |
| 4 | Iguaçu National Park | 🇧🇷 Brazil | |
| 5 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 6 | Emas National Park | 🇧🇷 Brazil | |
| 7 | Iberá National Park | 🇦🇷 Argentina | |
| 8 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Belo Horizonte | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Saffron-billed Sparrow sighting in Emas National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 171st most-seen of the 187 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July and October
In those months about 10% of wildlife watchers report a Saffron-billed Sparrow in Emas National Park on a given day, against under 5% in March, May–June, August–September and November, the lowest months. Those are among Emas National Park's driest months, with about 55 mm of rain a month against 190 mm in January. April and December–February have too few records to rate.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Saffron-billed Sparrow sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 8
Of the 8 parks where we can rate Saffron-billed Sparrow sightings, Emas National Park ranks 6th at under 5%. The best odds are in Chapada dos Guimarães National Park (Brazil, about 20%), El Impenetrable National Park (Argentina, about 20%) and Iguazú National Park (Argentina, about 20%).
Same family: Passerellidae
The closest relatives of the Saffron-billed Sparrow that you can see in Emas National Park (family Passerellidae, New World Sparrows) are Grassland Sparrow (about 60%) and Rufous-collared Sparrow (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Saffron-billed Sparrow is recorded against all the birds logged in Emas National Park (6 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
