Euphonia gouldi
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
The olive-backed euphonia (Euphonia gouldi) is a species of bird in the family Fringillidae, the finches and euphonias. It is found from Mexico to Panama. The olive-backed euphonia was originally described by Philip Sclater in 1857 with its current binomial Euphonia gouldi (though spelled "Euphonia Gouldi). Sclater chose the specific epithet gouldi to honor the English ornithologist John Gould, "one of the most eminent naturalists of the day", who had collected the type specimen. 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 olive-backed euphonia is 9 to 10 cm (3.5 to 3.9 in) long and weighs about 11 to 16 g (0.39 to 0.56 oz). It is a small euphonia with a thick stubby bill. The species is sexually dimorphic. Adult males of the nominate subspecies have a yellow forehead; the patch extends to the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pico Bonito National Park | 🇭🇳 Honduras | |
| 2 | Gandoca-Manzanillo Wildlife Refuge | 🇨🇷 Costa Rica | |
| 3 | Cahuita National Park | 🇨🇷 Costa Rica | |
| 4 | Cockscomb Basin Wildlife Sanctuary | 🇧🇿 Belize | |
| 5 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 6 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 7 | Tortuguero National Park | 🇨🇷 Costa Rica | |
| 8 | Tikal National Park | 🇬🇹 Guatemala | |
| 9 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 10 | Cusuco National Park | 🇭🇳 Honduras | |
| 11 | Bastimentos Island National Marine Park | 🇵🇦 Panama | |
| 12 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 13 | Rincón de la Vieja National Park | 🇨🇷 Costa Rica | |
| 14 | Montes Azules Biosphere Reserve | 🇲🇽 Mexico | |
| 15 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | |
| 16 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 17 | Poás Volcano National Park | 🇨🇷 Costa Rica |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Pedro Sula | 🇭🇳 Honduras |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | San Diego Zoo | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Olive-backed Euphonia sighting in Montes Azules Biosphere Reserve on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 156th most-seen of the 240 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.
October
In that month about 30% of wildlife watchers report an Olive-backed Euphonia in Montes Azules Biosphere Reserve on a given day, against under 5% in September and November–March, the lowest months. That is one of Montes Azules Biosphere Reserve's wettest months, with about 260 mm of rain against 55 mm in March.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Olive-backed Euphonia sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
14th of 17
Of the 17 parks where we can rate Olive-backed Euphonia sightings, Montes Azules Biosphere Reserve ranks 14th at about 10%. The best odds are in Pico Bonito National Park (Honduras, about 60%), Gandoca-Manzanillo Wildlife Refuge (Costa Rica, about 50%) and Cahuita National Park (Costa Rica, about 40%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Olive-backed Euphonia is recorded against all the birds logged in Montes Azules Biosphere Reserve (21 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.
