Rufous-headed Chachalaca vs Spix's Guan
Ortalis erythroptera 比較対象 Penelope jacquacu
Side-by-Side Comparison
| 属性 | Rufous-headed Chachalaca | Spix's Guan |
|---|---|---|
| 学名 | Ortalis erythroptera | Penelope jacquacu |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 43.8 cm (17.2 in) | 59.3 cm (23.3 in) |
| 体重 | 632.5 g (22.31 oz) | 1469.5 g (51.84 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 Amazonian lowland forests. Forages in canopy and … |
| 一腹卵数 | 3 | 2-3 |
| 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.
Spix's Guan
Produces a loud, resonant honking cackle; wing-whirring display is vigorous. Calls are deeper and louder than smaller guans; echoes through Amazonian terra firme canopy.
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.
Spix's Guan
Resident in the Amazon Basin from Colombia and Venezuela south to Bolivia and Brazil. Found in lowland rainforest, especially along rivers.
保全状況
Rufous-headed Chachalaca
Spix's 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.
Spix's Guan
Predominantly dark olive-brown; bare reddish throat wattle; neck and breast streaked white; lower belly and flanks rufous; wing coverts with fine pale edging; tail long, dark brown.
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.
Spix's Guan
アマゾン流域の熱帯雨林に広く分布するグアンで、南米で最も一般的なグアンの一種。果実、葉、花を採食し、大きな群れを形成することがある。