Nothocrax urumutum
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The nocturnal curassow (Nothocrax urumutum) is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Brazil, Colombia, Ecuador, Peru, and Venezuela. The nocturnal curassow was originally placed in genus Crax but genetic data confirm that Nothocrax is a valid genus. It is the only member of its genus and has no subspecies.
The nocturnal curassow is the smallest curassow at 50 to 57.5 cm (1.6 to 1.9 ft) long. One bird weighed 1,250 g (2.8 lb). It is also unique with its mostly rufous and chestnut plumage, as other curassows are mostly black. Its crest is flat and blackish, its ventral area buffy, and the tips of its tail feathers are paler than the rest. Its brownish-orange eye is surrounded by bare skin, greenish-yellow above and black below. The bill is reddish-orange and the legs gray.
The nocturnal curassow is found in middle and upper Amazonia, from far southern Venezuela, southeastern Colombia, eastern Ecuador, and northeastern Peru into western and central Brazil. It inhabits terra firme forest and flooded forests (both permanent and seasonal). It favors low... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador | |
| 3 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Zoológico de Goiânia | 🇧🇷 Brazil | |
| 2 | Rio de Janeiro Zoological Garden | 🇧🇷 Brazil | |
| 3 | Selwo Marina | 🇪🇸 Spain | |
| 4 | Zoo de Lourosa | 🇵🇹 Portugal | |
| 5 | Dallas World Aquarium | 🇺🇸 United States | |
| 6 | Zooparque Itatiba | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Nocturnal Curassow sighting in Yasuní National Park on a given day, based on 117 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 301st most-seen of the 533 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
March, August and November–December
In those months about 10% of wildlife watchers report a Nocturnal Curassow in Yasuní National Park on a given day, against under 5% in January–February, April–July and September–October, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Nocturnal Curassow sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
2nd of 3
Of the 3 parks where we can rate Nocturnal Curassow sightings, Yasuní National Park ranks 2nd at under 5%. The best odds are in Amacayacu National Natural Park (Colombia, about 10%).
Same family: Cracidae
The closest relatives of the Nocturnal Curassow that you can see in Yasuní National Park (family Cracidae, Guans, Chachalacas, and Curassows) are Speckled Chachalaca (about 40%), Blue-throated Piping-Guan (about 30%) and Spix's Guan (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Nocturnal Curassow is recorded against all the birds logged in Yasuní National Park (117 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.
