Blue-billed Curassow vs Rufous-headed Chachalaca
Crax alberti 比較対象 Ortalis erythroptera
Side-by-Side Comparison
| 属性 | Blue-billed Curassow | Rufous-headed Chachalaca |
|---|---|---|
| 学名 | Crax alberti | Ortalis erythroptera |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Critically Endangered | Vulnerable |
| 体長 | — | — |
| 翼開長 | 80.2 cm (31.6 in) | 43.8 cm (17.2 in) |
| 体重 | 2650.0 g (93.48 oz) | 632.5 g (22.31 oz) |
| 食性 | Frugivorous; eats large fruits, seeds, and invertebrates on ground of Colombian lowland forests. Critically endangered. | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … |
| 一腹卵数 | 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.
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
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.
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
Blue-billed Curassow
Rufous-headed Chachalaca
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 …
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
Blue-billed Curassow
ブルービルドクラシャウ（Crax alberti）— コロンビア北部の低地雨林に固有のホッコ類。青い嘴基部の大きなコブが特徴。絶滅危惧種。
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.