Yellow-knobbed Curassow vs West Mexican Chachalaca
Crax daubentoni 比較対象 Ortalis poliocephala
Side-by-Side Comparison
| 属性 | Yellow-knobbed Curassow | West Mexican Chachalaca |
|---|---|---|
| 学名 | Crax daubentoni | Ortalis poliocephala |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 76.2 cm (30.0 in) | 52.0 cm (20.5 in) |
| 体重 | 2383.3333333333335 g (84.07 oz) | 760.0 g (26.81 oz) |
| 食性 | Eats large fruits, seeds, and invertebrates on forest floor of Venezuelan and Colombian lowlands. Forages … | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … |
| 一腹卵数 | 2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Yellow-knobbed Curassow
Emits a deep, resonant booming call; male produces guttural contact clucking. The boom carries through Venezuelan and Colombian dry and gallery forest at dawn.
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.
Geographic Range & Migration
Yellow-knobbed Curassow
Resident in Venezuela and adjacent Colombia. Found in lowland dry and gallery forest in the Llanos and Caribbean coast region.
West Mexican Chachalaca
Endemic to the Pacific coast of Mexico from Sonora south to Jalisco. Found in tropical dry forest and thorn scrub.
保全状況
Yellow-knobbed Curassow
West Mexican Chachalaca
How to Tell Them Apart
Yellow-knobbed Curassow
Male is black with white lower belly; curly black crest; prominent yellow knob at bill base; yellow bare facial skin. Female barred rufous and black with finely curled crest; yellow …
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 …
About These Birds
Yellow-knobbed Curassow
イエローノブドクラシャウ（Crax daubentoni）— コロンビアとベネズエラの低地林に生息するホッコ。黄色い嘴コブをもつオスが特徴。
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.