Mitu tuberosum
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~50%
The razor-billed curassow (Mitu tuberosum) is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Bolivia, Brazil, Colombia, and Peru. The razor-billed curassow was originally placed in genus Crax but genetic data confirm that Mitu is a valid genus. It was for a time treated as a subspecies of Alagoas curassow (Mitu mitu) and they are now treated as sister species. The razor-billed curassow is monotypic.
The razor-billed curassow is 83 to 89 cm (2.7 to 2.9 ft) long and males weigh about 3,860 g (8.5 lb). Their plumage is mostly black with a strong purplish blue gloss. The lower belly and undertail coverts are chestnut and the tips of the tail feathers white. It has a tall ragged crest. Its large bright red bill is laterally compressed, which gives the species its common name.
The razor-billed curassow is found in much of Amazonia, mostly south of the Amazon River in eastern Peru, northern Bolivia, and northern Brazil all the way to the Atlantic coast. It is found north of the Amazon in southeastern Colombia, extreme northeastern Peru, and Brazil as far east as... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru | |
| 2 | Tambopata National Reserve | 🇵🇪 Peru | |
| 3 | Amboró National Park | 🇧🇴 Bolivia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Parque das Aves | 🇧🇷 Brazil | |
| 2 | Walsrode World Bird Park | 🇩🇪 Germany | |
| 3 | Parque Zoobotânico de Teresina | 🇧🇷 Brazil | |
| 4 | Parque Zoológico de León - Zooleón | 🇲🇽 Mexico | |
| 5 | Temaikén | 🇦🇷 Argentina | |
| 6 | Night Safari | 🇸🇬 Singapore | |
| 7 | Singapore Zoo | 🇸🇬 Singapore | |
| 8 | Zoológico Municipal de Cascavel | 🇧🇷 Brazil | |
| 9 | Bird Paradise | 🇸🇬 Singapore | |
| 10 | Rainforest Wild Asia | 🇸🇬 Singapore | |
| 11 | Rio de Janeiro Zoological Garden | 🇧🇷 Brazil | |
| 12 | Zoo das Aves | 🇧🇷 Brazil | |
| 13 | Zoo Americana / Parque Ecológico Municipal | 🇧🇷 Brazil | |
| 14 | River Wonders | 🇸🇬 Singapore | |
| 15 | Zoológico do CIGS | 🇧🇷 Brazil | |
| 16 | Ecozoológico San Martín | 🇪🇨 Ecuador | |
| 17 | Zoo Koki (Parque zoológico y botánico) | 🇪🇸 Spain | |
| 18 | Tropical Manaus Zoo | 🇧🇷 Brazil | |
| 19 | Fundação Zoobotânica de Marabá | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Razor-billed Curassow sighting in Tambopata National Reserve on a given day, based on 283 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 165th most-seen of the 550 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
September
In that month about 20% of wildlife watchers report a Razor-billed Curassow in Tambopata National Reserve on a given day, against under 5% in February and March, the lowest months. That is one of Tambopata National Reserve's driest months, with about 90 mm of rain against 420 mm in February.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Razor-billed Curassow sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 3 parks where we can rate Razor-billed Curassow sightings, Tambopata National Reserve ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Manu National Park (Peru, about 10%).
Same family: Cracidae
The closest relatives of the Razor-billed Curassow that you can see in Tambopata National Reserve (family Cracidae, Guans, Chachalacas, and Curassows) are Spix's Guan (about 20%), Speckled Chachalaca (about 20%) and Blue-throated Piping-Guan (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Razor-billed Curassow is recorded against all the birds logged in Tambopata National Reserve (283 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.
