West Mexican Chachalaca vs Bearded Guan
Ortalis poliocephala 比較対象 Penelope barbata
Side-by-Side Comparison
| 属性 | West Mexican Chachalaca | Bearded Guan |
|---|---|---|
| 学名 | Ortalis poliocephala | Penelope barbata |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Near Threatened |
| 体長 | — | — |
| 翼開長 | 52.0 cm (20.5 in) | 48.4 cm (19.1 in) |
| 体重 | 760.0 g (26.81 oz) | 822.8 g (29.02 oz) |
| 食性 | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … | Eats fruits, berries, seeds, leaves, and flowers in Andean cloud forests of Ecuador and Peru. … |
| 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.
Bearded Guan
Emits a loud, deep honking cackle and produces wing-whirring in display. Calls are resonant; the wing-whirr display is loud and penetrating in Ecuadorian and Peruvian cloud forest.
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.
Bearded Guan
Resident in the Andes of southern Ecuador and northern Peru at 1,800-3,400 m. Found in humid montane forest.
保全状況
West Mexican Chachalaca
Bearded 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 …
Bearded Guan
Dark olive-brown above; throat with bare red skin and feathered lower edge resembling beard; neck and breast finely streaked white on dark brown; lower belly rufous-chestnut; tail dark brown.
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.
Bearded Guan
エクアドルとペルーのアンデス南部に生息するグアンで、特徴的なあごの垂れ皮を持つ。絶滅危惧種に指定されており、生息地の保護が急務となっている。