West Mexican Chachalaca vs Chestnut-bellied Guan
Ortalis poliocephala 比較対象 Penelope ochrogaster
Side-by-Side Comparison
| 属性 | West Mexican Chachalaca | Chestnut-bellied Guan |
|---|---|---|
| 学名 | Ortalis poliocephala | Penelope ochrogaster |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 52.0 cm (20.5 in) | 64.1 cm (25.2 in) |
| 体重 | 760.0 g (26.81 oz) | 1214.5 g (42.84 oz) |
| 食性 | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … | Frugivorous; eats fruits, berries, seeds, and leaves in Brazilian Cerrado and gallery forests. Vulnerable species. |
| 一腹卵数 | 2-3 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
West Mexican Chachalaca
Emits a loud, raucous chachalaca chorus; individual calls are slightly lower than Plain Chachalaca. Dawn choruses boom across Mexico's Pacific slope thornscrub and tropical 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
West Mexican Chachalaca
Endemic to the Pacific coast of Mexico from Sonora south to Jalisco. Found in tropical dry forest and thorn scrub.
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
West Mexican Chachalaca
Chestnut-bellied Guan
How to Tell Them Apart
West Mexican Chachalaca
Olive-brown above with greyish head; bare reddish throat skin; underparts pale grey with buff-olive flanks; tail long and dark brown with white tips on outer feathers. Overall paler than eastern …
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
West Mexican Chachalaca
A large chachalaca (~760 g) of family Cracidae, with a grey head and brownish body. Endemic to Mexico, inhabiting tropical dry and semi-deciduous forests of the Pacific coast from Jalisco to Oaxaca. Forages in groups for fruits, leaves, and seeds in forest canopy and understory. Least Concern; well adapted to secondary growth and forest edges throughout its restricted Mexican range.
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。