Penelope superciliaris
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~60%
The rusty-margined guan (Penelope superciliaris) is a species of bird in the family Cracidae, which includes the chachalacas, guans, and curassows. It is found in Argentina, Bolivia, Brazil, and Paraguay. The International Ornithological Committee (IOC) and the Handbook of the Birds of the World taxonomies recognize the four rusty-margined guan subspecies listed in the box to the right. The Clements taxonomy does not recognize P. s. pseudonyma as separate but includes its population in the nominate subspecies. Birds in Brazil's Alagoas state are distinctive and might be a separate subspecies. The rusty-margined guan and the Marail guan (P. marail) form a superspecies.
The rusty-margined guan is 55 to 73 cm (1.8 to 2.4 ft) long. The nominate subspecies weighs 950 to 1,150 g (2.1 to 2.5 lb) and P. s. jacupemba 750 to 880 g (1.7 to 1.9 lb). The species' upperparts are dark olive to brownish with the eponymous reddish margins on the wing coverts and scapulars. The belly is also rusty. The face is pale with a supercilium whose color ranges from white to buff or ochre in the different subspecies. P. s. jacupemba paler overall than the nominate... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tijuca National Park | 🇧🇷 Brazil | |
| 2 | Emas National Park | 🇧🇷 Brazil | |
| 3 | Iguaçu National Park | 🇧🇷 Brazil | |
| 4 | Iguazú National Park | 🇦🇷 Argentina | |
| 5 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 6 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 7 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 8 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 9 | Itatiaia National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rio de Janeiro | 🇧🇷 Brazil | |
| 2 | Belo Horizonte | 🇧🇷 Brazil | |
| 3 | Natal | 🇧🇷 Brazil | |
| 4 | Fortaleza | 🇧🇷 Brazil | |
| 5 | Campo Grande | 🇧🇷 Brazil | |
| 6 | Vitória | 🇧🇷 Brazil | |
| 7 | São Paulo | 🇧🇷 Brazil |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Parque das Aves | 🇧🇷 Brazil | |
| 2 | Bioparque Municipal Vesty Pakos | 🇧🇴 Bolivia | |
| 3 | Rio de Janeiro Zoological Garden | 🇧🇷 Brazil | |
| 4 | Zoobotânico de São José do Rio Preto | 🇧🇷 Brazil | |
| 5 | Mangal das Garças | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Rusty-margined Guan sighting in Emas National Park on a given day, based on 22 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 119th most-seen of the 187 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Rusty-margined Guan in Emas National Park on a given day, against under 5% in October, the lowest month. That is one of Emas National Park's driest months, with about 15 mm of rain against 190 mm in January. April and December–February have too few records to rate.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Rusty-margined Guan sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 9
Of the 9 parks where we can rate Rusty-margined Guan sightings, Emas National Park ranks 2nd at about 10%. The best odds are in Tijuca National Park (Brazil, about 20%).
GBIF citizen-science records
It is estimated from how often the Rusty-margined Guan is recorded against all the birds logged in Emas National Park (22 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.
