Euphonia pectoralis
Silhouette: Sheatherius · PhyloPic
In 3 days ~80% in a week >90%
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 |
Likely
About 40% of wildlife watchers report a Chestnut-bellied Euphonia sighting in Serra dos Órgãos National Park on a given day, based on 293 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 49th most-seen of the 336 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
July
In that month about 70% of wildlife watchers report a Chestnut-bellied Euphonia in Serra dos Órgãos National Park on a given day, against about 20% in January, the lowest month. That is one of Serra dos Órgãos National Park's driest months, with about 50 mm of rain against 310 mm in November.
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.
Yes
Of the 5 parks where we can rate Chestnut-bellied Euphonia sightings, Serra dos Órgãos National Park has the highest daily chance: about 40%. Next come Iguazú National Park (Argentina, about 30%) and Iguaçu National Park (Brazil, about 30%). All parks ranked.
Same genus: Euphonia
The closest relatives of the Chestnut-bellied Euphonia that you can see in Serra dos Órgãos National Park (genus Euphonia, Typical Euphonias) are Violaceous Euphonia (about 60%), Orange-bellied Euphonia (about 50%) and Purple-throated Euphonia (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chestnut-bellied Euphonia is recorded against all the birds logged in Serra dos Órgãos National Park (293 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.
