Psarocolius bifasciatus
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The olive oropendola (Psarocolius bifasciatus) is a species of bird in the family Icteridae, the oropendolas, New World orioles, and New World blackbirds. It is found in Brazil, Bolivia, Colombia, Ecuador, Peru, and Venezuela. It is a "spectacularly large oropendola".
The olive oropendola was formally described in 1824 with the binomial Cassicus bifasciatus. For a time it was placed in genus Gymnostinops which was later merged into the current Psarocolius. The olive oropendola's further taxonomy is unsettled. As of early 2026, major taxonomic systems assign it these three subspecies:
Psarocolius bifasciatus yuracares (d'Orbigny & Lafresnaye, 1838) Psarocolius bifasciatus neivae (Snethlage, E, 1925) Psarocolius bifasciatus bifasciatus (Spix, 1824) The Clements taxonomy recognizes some distinctions within the species, mirroring the earlier treatment by calling bifasciatus the "olive oropendola (Para... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru | |
| 2 | Manu National Park | 🇵🇪 Peru | |
| 3 | Yasuní National Park | 🇪🇨 Ecuador | |
| 4 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 5 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 6 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Belém | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report an Olive Oropendola sighting in Anavilhanas National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 219th most-seen of the 291 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.
May and December–January
In those months about 10% of wildlife watchers report an Olive Oropendola in Anavilhanas National Park on a given day, against under 5% in February–April and June–November, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Olive Oropendola sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 6
Of the 6 parks where we can rate Olive Oropendola sightings, Anavilhanas National Park ranks 4th at under 5%. The best odds are in Tambopata National Reserve (Peru, about 20%), Manu National Park (Peru, about 20%) and Yasuní National Park (Ecuador, about 10%).
GBIF citizen-science records
It is estimated from how often the Olive Oropendola is recorded against all the birds logged in Anavilhanas National Park (13 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.
