Rufous-headed Chachalaca vs Band-tailed Guan
Ortalis ruficeps 比較対象 Penelope argyrotis
Side-by-Side Comparison
| 属性 | Rufous-headed Chachalaca | Band-tailed Guan |
|---|---|---|
| 学名 | Ortalis ruficeps | Penelope argyrotis |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 52.8 cm (20.8 in) |
| 体重 | 495.0 g (17.46 oz) | 798.0 g (28.15 oz) |
| 食性 | Frugivorous; eats fruits, berries, seeds, and leaves in northeastern Brazilian caatinga and forest edges. | Frugivorous; eats fruits, berries, leaves, flowers, and buds in Andean forests of Venezuela and Colombia. … |
| 一腹卵数 | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-headed Chachalaca
Emits a loud, raucous chachalaca chorus; individual calls are slightly raspy. Dawn choruses ring across Brazilian interior forest and cerrado; recently described species.
Band-tailed Guan
Produces a loud, honking cackle and resonant wing-whirring in display flights. The deep, carrying honk and wing-whirr display is characteristic of this Andean Penelope guan.
Geographic Range & Migration
Rufous-headed Chachalaca
Resident in northeastern Brazil from Maranhão to Bahia. Found in caatinga dry scrub and transitional forest.
Band-tailed Guan
Resident in the Andes and mountains of Colombia and Venezuela from 1,000-2,400 m. Found in humid montane forest.
保全状況
Rufous-headed Chachalaca
Band-tailed Guan
How to Tell Them Apart
Rufous-headed Chachalaca
Olive-brown body; crown and nape washed rufous-cinnamon; bare pink throat skin; underparts pale grey-buff; tail dark brownish with buff outer-feather tips. Similar to O. erythroptera but head less intensely rufous.
Band-tailed Guan
Brownish-black above with fine white streaking on neck and chest; bare red facial skin; lower underparts chestnut; tail broad with distinctive pale grey subterminal band.
About These Birds
Rufous-headed Chachalaca
A medium-sized cracid (~495 g) of family Cracidae, with a rufous crown and head. Endemic to northeastern Brazil, primarily found in caatinga scrubland and dry forest habitats. Forages on fruits and vegetation in small groups. Not Evaluated by IUCN; taxonomy is debated as it may represent a subspecies or synonym of related chachalaca taxa. Little studied in the wild.
Band-tailed Guan
コロンビアとベネズエラの山岳林に生息するグアンで、銀白色の頭部の羽毛が特徴的。アンデス山脈の雲霧林に生息し、果実や葉を採食する。