Band-tailed Guan vs Spix's Guan
Penelope argyrotis 比較対象 Penelope jacquacu
Side-by-Side Comparison
| 属性 | Band-tailed Guan | Spix's Guan |
|---|---|---|
| 学名 | Penelope argyrotis | Penelope jacquacu |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 52.8 cm (20.8 in) | 59.3 cm (23.3 in) |
| 体重 | 798.0 g (28.15 oz) | 1469.5 g (51.84 oz) |
| 食性 | Frugivorous; eats fruits, berries, leaves, flowers, and buds in Andean forests of Venezuela and Colombia. … | Frugivorous; eats fruits, berries, seeds, and leaves in Amazonian lowland forests. Forages in canopy and … |
| 一腹卵数 | -- | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
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
Band-tailed Guan
Resident in the Andes and mountains of Colombia and Venezuela from 1,000-2,400 m. Found in humid montane forest.
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
Band-tailed Guan
Spix's Guan
How to Tell Them Apart
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.
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
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。
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。