Unicoloured Blackbird

Unicoloured Blackbird

Agelasticus cyanopus

Silhouette: Sheatherius · PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~10% · With luck
at Asuncion

In 3 days ~20% in a week ~40%

122 Verified sightings at Asuncion
1,520 In all 5 parks From 2019 to 2026
January Best month
☀️ Diurnal When it's spotted

About the Unicoloured Blackbird

The unicolored blackbird (Agelasticus cyanopus) is a species of bird in the family Icteridae, the oropendolas, New World orioles, and New World blackbirds. It is found in Argentina, Bolivia, Brazil, Paraguay, Uruguay, and as a vagrant in Peru.

The unicolored blackbird was formally described in 1819 with the binomial Agelaius cyanopus. The species was later assigned to genus Chrysomus. By the 1990s Agelaius and Chrysomus were beginning to be recognized as polyphyletic, and early in the twenty-first century Agelasticus, which had been erected in 1851, was resurrected for the unicolored blackbird and two other species.

The unicolored blackbird's further taxonomy is unsettled. The IOC, AviList, and BirdLife International's Handbook of the Birds of the World recognize these four subspecies: The females have notably different plumage and some authors have suggested... Wikipedia →

Sounds

Call0:34

Brazil · 2026

© JAYRSON ARAUJO DE OLIVEIRA · XC1163677 · CC BY-NC-SA 4.0

Song0:13

Argentina · 2026

© Marcos E. Sosa · XC1133736 · CC BY-NC-SA 4.0

Alarm call0:26

Argentina

© Bernabe Lopez-Lanus · XC48023 · CC BY-NC-SA 3.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Parque Estadual Encontro das Águas 🇧🇷 Brazil
~50%
2 Iberá National Park 🇦🇷 Argentina
~30%
3 El Impenetrable National Park 🇦🇷 Argentina
<5%
4 Iguazú National Park 🇦🇷 Argentina
<5%
5 Iguaçu National Park 🇧🇷 Brazil
<5%

Cities Where Found

# City Country Daily sighting probability
1 Asuncion 🇵🇾 Paraguay
~10%
2 São Paulo 🇧🇷 Brazil
<5%
3 Buenos Aires 🇦🇷 Argentina
<5%

Before you go

What are the chances of seeing a Unicoloured Blackbird in Asuncion?

With luck

About 10% of wildlife watchers report a Unicoloured Blackbird sighting in Asuncion on a given day, based on 122 verified sightings from GBIF citizen-science data. It is the 88th most-seen of the 224 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.

When is the best time to see a Unicoloured Blackbird in Asuncion?

July to May

In those months about 10% of wildlife watchers report a Unicoloured Blackbird in Asuncion on a given day, against under 5% in June, the lowest month.

What time of day is best to see a Unicoloured Blackbird?

Between 8 and 11 am

Across all the parks we cover, that three-hour window holds the most Unicoloured Blackbird sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Asuncion the best place to see a Unicoloured Blackbird?

Yes

Of the 3 cities where we can rate Unicoloured Blackbird sightings, Asuncion has the highest daily chance: about 10%. Next come São Paulo (Brazil, under 5%) and Buenos Aires (Argentina, under 5%).

Which relatives of the Unicoloured Blackbird live in Asuncion?

Same family: Icteridae

The closest relatives of the Unicoloured Blackbird that you can see in Asuncion (family Icteridae, New World Blackbirds and Orioles) are Shiny Cowbird (about 60%), Grayish Baywing (about 20%) and Epaulet Oriole (about 20%), with each one's daily chance of a sighting.

Where does the Unicoloured Blackbird sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Unicoloured Blackbird is recorded against all the birds logged in Asuncion (122 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.

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