Blue-billed Curassow vs Alagoas Curassow
Crax alberti compared with Mitu mitu
Side-by-Side Comparison
| Attribute | Blue-billed Curassow | Alagoas Curassow |
|---|---|---|
| Scientific Name | Crax alberti | Mitu mitu |
| Order | Galliformes | Galliformes |
| Family | Cracidae | Cracidae |
| Conservation Status | Critically Endangered | Extinct in the Wild |
| Length | — | — |
| Wingspan | 80.2 cm (31.6 in) | 79.2 cm (31.2 in) |
| Weight | 2650.0 g (93.48 oz) | 2852.5 g (100.62 oz) |
| Diet | Frugivorous; eats large fruits, seeds, and invertebrates on ground of Colombian lowland forests. Critically endangered. | 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
Blue-billed Curassow
Produces a deep, resonant booming call; male gives guttural contact calls. Critically Endangered; voice rarely heard in the wild in remnant Colombian forest.
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
Blue-billed Curassow
Endemic to northwestern Colombia in the Sierra Nevada de Santa Marta and nearby ranges. Found in humid forest at 200-1,000 m. Critically endangered.
Alagoas Curassow
Endemic to northeastern Brazil in Alagoas. Extinct in the wild; survives only in captivity. Last wild record was 1980s.
Conservation Status
Blue-billed Curassow
Alagoas Curassow
How to Tell Them Apart
Blue-billed Curassow
Male is glossy black with white belly and curly black crest; distinctive bright blue bill with no yellow knob. Female is barred black-and-chestnut with curly crest; blue bill separates it …
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
Blue-billed Curassow
A large cracid (~2.7 kg) of family Cracidae, males black with a prominent blue bill and knob. Endemic to the lowland and foothill forests of northern Colombia. Forages on the forest floor for fruits, seeds, and invertebrates. Critically Endangered; one of Colombia's most threatened birds with severely fragmented populations due to extensive deforestation and uncontrolled hunting.
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.