Euphonia pectoralis
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
The chestnut-bellied euphonia (Euphonia pectoralis) is a species of bird in the family Fringillidae, the finches and euphonias. It is found in Argentina, Brazil, and Paraguay. The chestnut-bellied euphonia was formally described in 1801 with the binomial Pipra pectoralis, mistakenly identifying it as a manakin. The species was eventually reassigned to genus Euphonia. At the time, the genus Euphonia was a member of the family Thraupidae, the "true" tanagers. Multiple studies in the late twentieth and early twenty-first centuries resulted in Euphonia being reassigned to its present place in the family Fringillidae.
The "black-throated euphonia" ("Euphonia vittata") was originally described as a species but is now believed to be a hybrid between the chestnut-bellied euphonia and the orange-bellied euphonia (E. xanthogaster). The chestnut-bellied euphonia is monotypic.
The chestnut-bellied euphonia is about 11 cm (4.3 in) long and weighs 15 to 16.5 g (0.53 to 0.58 oz). It is a smallish euphonia with a stout bill. The species is sexually dimorphic. Adult males have a glossy metallic blue head, breast, and upperparts. Their flight feathers... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 2 | Iguazú National Park | 🇦🇷 Argentina | |
| 3 | Iguaçu National Park | 🇧🇷 Brazil | |
| 4 | Itatiaia National Park | 🇧🇷 Brazil | |
| 5 | Tijuca National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santos | 🇧🇷 Brazil | |
| 2 | Rio de Janeiro | 🇧🇷 Brazil | |
| 3 | Porto Alegre | 🇧🇷 Brazil | |
| 4 | São Paulo | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Chestnut-bellied Euphonia sighting in Tijuca National Park on a given day, based on 203 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 75th most-seen of the 214 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
February to September
In those months about 10% of wildlife watchers report a Chestnut-bellied Euphonia in Tijuca National Park on a given day, against under 5% in October to January, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Chestnut-bellied Euphonia sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
5th of 5
Of the 5 parks where we can rate Chestnut-bellied Euphonia sightings, Tijuca National Park ranks 5th at about 10%. The best odds are in Serra dos Órgãos National Park (Brazil, about 40%), Iguazú National Park (Argentina, about 30%) and Iguaçu National Park (Brazil, about 30%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Chestnut-bellied Euphonia is recorded against all the birds logged in Tijuca National Park (203 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.
