Cyanoloxia brissonii
Silhouette: Sheatherius · PhyloPic
In 3 days ~80% in a week >90%
The ultramarine grosbeak (Cyanoloxia brissonii) is a species of grosbeak in the family Cardinalidae. It is found in a wide range of semi-open habitats in eastern and central South America, with a disjunct population in northern South America.
These birds are 15 cm long. Adult males exhibit a dark-blue plumage with bright-blue highlights on the head and upper-wings and black on the face, wings and tail. The females and the juveniles are brown. Both sexes show black legs and large, thick bill.
The Ultramarine Grosbeak is sedentary, only noted to have short-distance local migrations. Individuals of this species are solitary and often territorial, rarely associating with conspecifics or loosely aggregating in mixed-species flocks.
Ultramarine Grosbeaks occur in open or semi-open edge habitats, in dense scrub such as thickets, preferably at the edge of swamps, secondary forests, and agricultural fields or plantations. The distribution of these birds is disjunct; their range extends from northeast and central Brazil to Bolivia, Paraguay, and Argentina and throughout the Gran Chaco. An isolated population can be found in southwestern Colombia... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 2 | El Palmar National Park | 🇦🇷 Argentina | |
| 3 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 4 | Iberá National Park | 🇦🇷 Argentina | |
| 5 | Henri Pittier National Park | 🇻🇪 Venezuela | |
| 6 | Iguazú National Park | 🇦🇷 Argentina | |
| 7 | Iguaçu National Park | 🇧🇷 Brazil | |
| 8 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 9 | Itatiaia National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rosario | 🇦🇷 Argentina | |
| 2 | Buenos Aires | 🇦🇷 Argentina | |
| 3 | Cordoba | 🇦🇷 Argentina | |
| 4 | Caracas | 🇻🇪 Venezuela | |
| 5 | Cali | 🇨🇴 Colombia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Zürich Zoo | 🇨🇭 Switzerland | |
| 2 | Burgers' Ocean | 🇳🇱 Netherlands | |
| 3 | Royal Burgers' Zoo | 🇳🇱 Netherlands | |
| 4 | Philadelphia Zoo | 🇺🇸 United States | |
| 5 | London Zoo | 🇬🇧 United Kingdom | |
| 6 | Zoológico La Era de las aves | 🇪🇸 Spain |
Likely
About 40% of wildlife watchers report an Ultramarine Grosbeak sighting in El Impenetrable National Park on a given day, based on 125 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 40th most-seen of the 219 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
April, July, September and November
In those months about 50% of wildlife watchers report an Ultramarine Grosbeak in El Impenetrable National Park on a given day, against about 20% in May, the lowest month. December has too few records to rate.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Ultramarine Grosbeak sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 9 parks where we can rate Ultramarine Grosbeak sightings, El Impenetrable National Park has the highest daily chance: about 40%. Next come El Palmar National Park (Argentina, about 40%) and Chapada Diamantina National Park (Brazil, about 10%).
GBIF citizen-science records
It is estimated from how often the Ultramarine Grosbeak is recorded against all the birds logged in El Impenetrable National Park (125 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.
