Nocturnal Curassow vs Rufous-headed Chachalaca
Nothocrax urumutum 比較対象 Ortalis erythroptera
Side-by-Side Comparison
| 属性 | Nocturnal Curassow | Rufous-headed Chachalaca |
|---|---|---|
| 学名 | Nothocrax urumutum | Ortalis erythroptera |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 56.1 cm (22.1 in) | 43.8 cm (17.2 in) |
| 体重 | 1368.0 g (48.25 oz) | 632.5 g (22.31 oz) |
| 食性 | Frugivorous; eats fruits, seeds, and small invertebrates in Amazonian lowland forests. Nocturnal; rarely observed foraging. | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … |
| 一腹卵数 | 1-2 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Nocturnal Curassow
Produces a loud, far-carrying booming call at night; calls are resonant and owl-like. This nocturnal curassow's deep, resonant booming is heard after dark in western Amazonian 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
Nocturnal Curassow
Resident in the western Amazon Basin in Colombia, Venezuela, Ecuador, Peru, and 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
Nocturnal Curassow
Rufous-headed Chachalaca
How to Tell Them Apart
Nocturnal Curassow
Chestnut-brown above with blackish scaling; head and neck dark with small black crest tipped rufous; face bare red-orange; underparts pale buff barred chestnut; tail chestnut broadly banded black.
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
Nocturnal Curassow
A medium-large cracid (~1.4 kg) of family Cracidae, the only curassow known for crepuscular and nocturnal activity. Has reddish-brown barred plumage and a small crest. Inhabits humid lowland rainforest in the western Amazon basin in Colombia, Ecuador, Peru, and Brazil. Feeds on fruits and invertebrates. Least Concern; secretive behavior and dense forest habitat provide natural protection.
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.