Euphonia pectoralis
Silhouette: Sheatherius · PhyloPic
In 3 days ~70% 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 |
Possible
About 30% of wildlife watchers report a Chestnut-bellied Euphonia sighting in Iguaçu National Park on a given day, based on 1,291 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 34th most-seen of the 346 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
January–February, April–May and August
In those months about 40% of wildlife watchers report a Chestnut-bellied Euphonia in Iguaçu National Park on a given day, against about 20% in November and December, 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.
3rd of 5
Of the 5 parks where we can rate Chestnut-bellied Euphonia sightings, Iguaçu National Park ranks 3rd at about 30%. The best odds are in Serra dos Órgãos National Park (Brazil, about 40%) and Iguazú National Park (Argentina, about 30%). All parks ranked.
Same genus: Euphonia
The closest relatives of the Chestnut-bellied Euphonia that you can see in Iguaçu National Park (genus Euphonia, Typical Euphonias) are Purple-throated Euphonia (about 40%) and Violaceous Euphonia (about 20%), 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 Iguaçu National Park (1,291 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.
