Black Curassow vs Rufous-headed Chachalaca
Crax alector 比較対象 Ortalis erythroptera
Side-by-Side Comparison
| 属性 | Black Curassow | Rufous-headed Chachalaca |
|---|---|---|
| 学名 | Crax alector | Ortalis erythroptera |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 79.0 cm (31.1 in) | 43.8 cm (17.2 in) |
| 体重 | 3106.25 g (109.57 oz) | 632.5 g (22.31 oz) |
| 食性 | Frugivorous; eats large fallen fruits, seeds, and invertebrates on forest floor of Amazonian and Guianan … | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … |
| 一腹卵数 | 2-3 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Black Curassow
Produces a deep, resonant booming call and guttural contact notes. The male's powerful boom echoes through Amazonian and Guyanan lowland forest at dawn.
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
Black Curassow
Resident in the Guiana region from Venezuela and the Guianas south into northern Brazil. Found in lowland terra firme rainforest.
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
Black Curassow
Rufous-headed Chachalaca
How to Tell Them Apart
Black Curassow
Male is entirely glossy black except for white lower belly and undertail; curly black crest; pale bluish-white knob at bill base; no yellow tones. Female dark brownish-black, faintly barred, with …
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
Black Curassow
A large cracid (~3.1 kg) of family Cracidae, males glossy black with a pale bill and curly frontal crest. Inhabits humid lowland forests in the Guianas, Venezuela, and northern Brazil. Forages on the forest floor and in the lower canopy for fruits, seeds, and invertebrates. Least Concern; relatively widespread in the Guiana region's large intact forest tracts.
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.