Yellow-knobbed Curassow vs Alagoas Curassow
Crax daubentoni compared with Mitu mitu
Side-by-Side Comparison
| Attribute | Yellow-knobbed Curassow | Alagoas Curassow |
|---|---|---|
| Scientific Name | Crax daubentoni | Mitu mitu |
| Order | Galliformes | Galliformes |
| Family | Cracidae | Cracidae |
| Conservation Status | Near Threatened | Extinct in the Wild |
| Length | — | — |
| Wingspan | 76.2 cm (30.0 in) | 79.2 cm (31.2 in) |
| Weight | 2383.3333333333335 g (84.07 oz) | 2852.5 g (100.62 oz) |
| Diet | Eats large fruits, seeds, and invertebrates on forest floor of Venezuelan and Colombian lowlands. Forages … | Frugivorous; eats fruits, seeds, and invertebrates in the ground and forest understorey. Extinct in wild; … |
| Clutch Size | 2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Yellow-knobbed Curassow
Emits a deep, resonant booming call; male produces guttural contact clucking. The boom carries through Venezuelan and Colombian dry and gallery forest at dawn.
Alagoas Curassow
Extirpated from wild (EW). Calls documented from captive birds: a deep, resonant booming similar to Razor-billed Curassow; flocks give low, guttural clucking contact calls.
Geographic Range & Migration
Yellow-knobbed Curassow
Resident in Venezuela and adjacent Colombia. Found in lowland dry and gallery forest in the Llanos and Caribbean coast region.
Alagoas Curassow
Endemic to northeastern Brazil in Alagoas. Extinct in the wild; survives only in captivity. Last wild record was 1980s.
Conservation Status
Yellow-knobbed Curassow
Alagoas Curassow
How to Tell Them Apart
Yellow-knobbed Curassow
Male is black with white lower belly; curly black crest; prominent yellow knob at bill base; yellow bare facial skin. Female barred rufous and black with finely curled crest; yellow …
Alagoas Curassow
Glossy black body; white lower belly and undertail; massive compressed red bill with orange-yellow tip; no head ornamentation. Now extinct in wild; the large red razor bill was its most …
About These Birds
Yellow-knobbed Curassow
A large cracid (~2.4 kg) of family Cracidae, males black with a yellow knob at the bill base and curly crest. Found in tropical dry forests, gallery forests, and forest edges in Venezuela and adjacent Colombia. Forages on the ground and in low vegetation for fruits and seeds. Near Threatened due to habitat loss and hunting in Venezuela's increasingly degraded lowland forests.
Alagoas Curassow
A large cracid (~2.9 kg) of family Cracidae, with glossy black plumage and a distinctive red knobbed bill. Extinct in the Wild; the last wild individuals disappeared from Alagoas, Brazil by the 1980s due to deforestation of the Atlantic Forest. A captive population survives in Brazilian zoos, with reintroduction programs underway. One of the most critically imperiled birds globally.