Unicoloured Blackbird

Unicoloured Blackbird

Agelasticus cyanopus

Silhouette: Sheatherius · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability <5% · Rare
at Iguaçu National Park
5 Verified sightings at Iguaçu National Park From 2019 to 2026
1,954 Verified sightings across all 9 parks From 2019 to 2026
November Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

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: A. c. xenicus (Parkes, 1966) A. c. atroolivaceus (Wied-Neuwied, M, 1831)

A. c. beniensis (Parkes, 1966) A. c. cyanopus (Vieillot, 1819) However, as of late 2025 the Clements taxonomy does not recognize A. c. beniensis and treats A. c. xenicus by its earlier binomial A. c. unicolor (Swainson, 1838).

The females have notably different plumage and some authors have suggested... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Iberá National Park 🇦🇷 Argentina
~40%
2 Parque Estadual Encontro das Águas 🇧🇷 Brazil
~30%
3 El Impenetrable National Park 🇦🇷 Argentina
<5%
4 Iguazú National Park 🇦🇷 Argentina
<5%
5 Iguaçu National Park 🇧🇷 Brazil
<5%
6 Chapada Diamantina National Park 🇧🇷 Brazil
Insufficient data
7 El Palmar National Park 🇦🇷 Argentina
Insufficient data
8 Serra dos Órgãos National Park 🇧🇷 Brazil
Insufficient data
9 Chapada dos Guimarães National Park 🇧🇷 Brazil
Insufficient data

Quick answers

What are the chances of seeing a Unicoloured Blackbird in Iguaçu National Park?

Under 5% of wildlife watchers report a Unicoloured Blackbird sighting in Iguaçu National Park, based on 5 verified sightings from GBIF citizen-science data.

When is the best time to see Unicoloured Blackbird in Iguaçu National Park?

November has the highest sighting rate for Unicoloured Blackbird in Iguaçu National Park in our monthly data.

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