Red-billed Curassow vs Rufous-headed Chachalaca
Crax blumenbachii 比較対象 Ortalis erythroptera
Side-by-Side Comparison
| 属性 | Red-billed Curassow | Rufous-headed Chachalaca |
|---|---|---|
| 学名 | Crax blumenbachii | Ortalis erythroptera |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Endangered | Vulnerable |
| 体長 | — | — |
| 翼開長 | 76.8 cm (30.2 in) | 43.8 cm (17.2 in) |
| 体重 | 3250.0 g (114.64 oz) | 632.5 g (22.31 oz) |
| 食性 | Eats large fruits, seeds, and invertebrates on Atlantic forest floor in Brazil. Critically endangered; diet … | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … |
| 一腹卵数 | 1-3 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Red-billed Curassow
Emits a deep, resonant booming call; contact calls are loud, guttural clucking. Endangered; the powerful boom echoes through remnant Atlantic forest; increasingly scarce.
Rufous-headed Chachalaca
Emits a loud, raucous chachalaca chorus; individual calls are slightly higher than Rufous-vented. Dawn choruses carry across Ecuadorian and Peruvian coastal dry forest.
Geographic Range & Migration
Red-billed Curassow
Endemic to the Atlantic Forest of southeastern Brazil in Rio de Janeiro and Espírito Santo. Found in lowland humid forest. Critically endangered.
Rufous-headed Chachalaca
Resident in western Ecuador and northwestern Peru. Found in tropical deciduous forest and scrub in the Tumbes-Chocó-Magdalena region.
保全状況
Red-billed Curassow
Rufous-headed Chachalaca
How to Tell Them Apart
Red-billed Curassow
Male is glossy black with white lower belly; curly black crest; vivid red bill with no knob; no yellow facial skin. Female is black barred chestnut; bright red bill is …
Rufous-headed Chachalaca
Brownish-olive body; head and upper neck warm rufous-cinnamon, distinctly contrasting with greyish-brown back; bare reddish throat wattle; underparts pale buff; tail dark with pale outer tips.
About These Birds
Red-billed Curassow
レッドビルドクラシャウ（Crax blumenbachii）— ブラジル大西洋森林固有の大型のホッコ。赤い嘴コブをもつオスが特徴。絶滅の危機に瀕している。
Rufous-headed Chachalaca
A medium-sized cracid (~630 g) of family Cracidae, with a striking rufous head. Inhabits humid and deciduous forests, forest edges, and scrub in western Ecuador and northwestern Peru. Feeds on fruits and leaves in the forest understory and canopy. Vulnerable due to extensive deforestation in the Tumbesian region, one of the world's most threatened biodiversity hotspots.