Euphonia pectoralis
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Chestnut-bellied Euphonia sighting in Rio de Janeiro on a given day, based on 95 verified sightings from GBIF citizen-science data. It is the 129th most-seen of the 278 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.
April and June
In those months about 10% of wildlife watchers report a Chestnut-bellied Euphonia in Rio de Janeiro on a given day, against under 5% in May and July–March, 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.
2nd of 4
Of the 4 cities where we can rate Chestnut-bellied Euphonia sightings, Rio de Janeiro ranks 2nd at under 5%. The best odds are in Santos (Brazil, about 10%).
GBIF citizen-science records
It is estimated from how often the Chestnut-bellied Euphonia is recorded against all the birds logged in Rio de Janeiro (95 verified sightings), 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.
