Alagoas Curassow vs Spix's Guan
Mitu mitu 对比 Penelope jacquacu
Side-by-Side Comparison
| 属性 | Alagoas Curassow | Spix's Guan |
|---|---|---|
| 学名 | Mitu mitu | Penelope jacquacu |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保护状况 | Extinct in the Wild | Least Concern |
| 体长 | — | — |
| 翼展 | 79.2 cm (31.2 in) | 59.3 cm (23.3 in) |
| 体重 | 2852.5 g (100.62 oz) | 1469.5 g (51.84 oz) |
| 食性 | Frugivorous; eats fruits, seeds, and invertebrates in the ground and forest understorey. Extinct in wild; … | Frugivorous; eats fruits, berries, seeds, and leaves in Amazonian lowland forests. Forages in canopy and … |
| 产卵数 | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Spix's Guan
Produces a loud, resonant honking cackle; wing-whirring display is vigorous. Calls are deeper and louder than smaller guans; echoes through Amazonian terra firme canopy.
Geographic Range & Migration
Alagoas Curassow
Endemic to northeastern Brazil in Alagoas. Extinct in the wild; survives only in captivity. Last wild record was 1980s.
Spix's Guan
Resident in the Amazon Basin from Colombia and Venezuela south to Bolivia and Brazil. Found in lowland rainforest, especially along rivers.
保护状况
Alagoas Curassow
Spix's Guan
How to Tell Them Apart
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 …
Spix's Guan
Predominantly dark olive-brown; bare reddish throat wattle; neck and breast streaked white; lower belly and flanks rufous; wing coverts with fine pale edging; tail long, dark brown.
About These Birds
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.
Spix's Guan
A large cracid (~1.5 kg) of family Cracidae, with olive-brown plumage and a red wattle. Inhabits lowland tropical rainforests across Amazonia in Brazil, Peru, Ecuador, Colombia, Bolivia, and Venezuela. Arboreal, feeding heavily on fruits, seeds, and leaves in the canopy. Least Concern; widespread and relatively common in undisturbed Amazonian forest.