Ocyalus latirostris
Silhouette: Sheatherius · PhyloPic
In 3 days ~40% in a week ~70%
The band-tailed cacique (Cacicus latirostris) is a species of bird in the family Icteridae, the oropendolas, New World orioles, and New World blackbirds. It is found in Brazil, Colombia, Ecuador, and Peru. The band-tailed cacique has a complicated taxonomic history. It was formally described in 1838 with its current binomial Cacicus latirostris. Various twentieth century authors placed it in either genus Ocyalus or genus Psarocolius. By the twenty-first century Psarocolius was no longer used and in the 2010s Ocyalus was merged into Cacicus. During its time as Ocyalus latirostris it was called the "band-tailed oropendola".
The band-tailed cacique is monotypic. Male band-tailed caciques average about 33 cm (13 in) long and 118 g (4.2 oz). Females average about 24.5 cm (9.6 in) long and 75 g (2.6 oz). The sexes have essentially the same plumage though females are a duller black than males. Adults are mostly velvety black. Their crown, nape, and upper back are chestnut and their wings have a bluish gloss. Their central tail feathers are black and the rest are yellow with black tips. They have a pale blue iris and black legs and feet. Their... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Amacayacu National Natural Park | 🇨🇴 Colombia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Band-tailed Oropendola sighting in Amacayacu National Natural Park on a given day, based on 95 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 108th most-seen of the 436 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
September
In that month about 30% of wildlife watchers report a Band-tailed Oropendola in Amacayacu National Natural Park on a given day, against under 5% in June, the lowest month. That is one of Amacayacu National Natural Park's driest months, with about 160 mm of rain against 390 mm in March.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Band-tailed 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.
Only Amacayacu National Natural Park, in our data
Amacayacu National Natural Park is the only park on Wallace's Line with enough records to rate Band-tailed Oropendola sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Icteridae
The closest relatives of the Band-tailed Oropendola that you can see in Amacayacu National Natural Park (family Icteridae, New World Blackbirds and Orioles) are Russet-backed Oropendola (about 70%), Yellow-rumped Cacique (about 60%) and Yellow-hooded Blackbird (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Band-tailed Oropendola is recorded against all the birds logged in Amacayacu National Natural Park (95 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.
