Rufous-headed Chachalaca vs Chestnut-bellied Guan
Ortalis erythroptera 比較対象 Penelope ochrogaster
Side-by-Side Comparison
| 属性 | Rufous-headed Chachalaca | Chestnut-bellied Guan |
|---|---|---|
| 学名 | Ortalis erythroptera | Penelope ochrogaster |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Vulnerable | Vulnerable |
| 体長 | — | — |
| 翼開長 | 43.8 cm (17.2 in) | 64.1 cm (25.2 in) |
| 体重 | 632.5 g (22.31 oz) | 1214.5 g (42.84 oz) |
| 食性 | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … | Frugivorous; eats fruits, berries, seeds, and leaves in Brazilian Cerrado and gallery forests. Vulnerable species. |
| 一腹卵数 | 3 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Chestnut-bellied Guan
Produces a loud, resonant honking cackle and wing-whirring display flights. Calls carry through Brazilian interior forest; classified Vulnerable due to habitat loss.
Geographic Range & Migration
Rufous-headed Chachalaca
Resident in western Ecuador and northwestern Peru. Found in tropical deciduous forest and scrub in the Tumbes-Chocó-Magdalena region.
Chestnut-bellied Guan
Endemic to central Brazil in the cerrado of Goiás and Mato Grosso. Found in dry forest and cerrado woodland near gallery forest.
保全状況
Rufous-headed Chachalaca
Chestnut-bellied Guan
How to Tell Them Apart
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.
Chestnut-bellied Guan
Dark brownish-black above; bare red throat wattle; neck and breast streaked white on dark; belly and flanks rich uniform chestnut-orange, more saturated than most Penelope guans; tail dark.
About These Birds
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.
Chestnut-bellied Guan
ブラジル中部のセラード（熱帯草原）と移行林に生息するグアンで、橙色がかった腹部が名前の由来。生息地の農地化により個体数が減少している。