Rufous-headed Chachalaca vs White-browed Guan
Ortalis erythroptera 比較対象 Penelope jacucaca
Side-by-Side Comparison
| 属性 | Rufous-headed Chachalaca | White-browed Guan |
|---|---|---|
| 学名 | Ortalis erythroptera | Penelope jacucaca |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Vulnerable | Vulnerable |
| 体長 | — | — |
| 翼開長 | 43.8 cm (17.2 in) | 56.1 cm (22.1 in) |
| 体重 | 632.5 g (22.31 oz) | 1438.0 g (50.72 oz) |
| 食性 | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … | Eats fruits, berries, seeds, and leaves in Brazilian caatinga dry forests. Vulnerable; forages in canopy … |
| 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.
White-browed Guan
Emits a loud, resonant honking cackle and wing-whirring display. Calls carry through Caatinga and dry Brazilian forest; one of the more arid-adapted Penelope guans.
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.
White-browed Guan
Endemic to the caatinga of northeastern Brazil in Pernambuco, Alagoas, Bahia, and Piauí. Found in dry scrubland.
保全状況
Rufous-headed Chachalaca
White-browed 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.
White-browed Guan
Dark brownish-black; distinctive broad white supercilium above bare red facial skin; throat wattled red; breast finely streaked white; lower belly rufous-chestnut; tail long and 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.
White-browed Guan
ブラジル北東部の半乾燥低木林（カアチンガ）に特有のグアンで、乾燥した環境への適応が際立つ。絶滅危惧種に指定されており個体数が少ない。