Blue-billed Curassow vs Grey-headed Chachalaca
Crax alberti 比較対象 Ortalis cinereiceps
Side-by-Side Comparison
| 属性 | Blue-billed Curassow | Grey-headed Chachalaca |
|---|---|---|
| 学名 | Crax alberti | Ortalis cinereiceps |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Critically Endangered | Least Concern |
| 体長 | — | — |
| 翼開長 | 80.2 cm (31.6 in) | 41.1 cm (16.2 in) |
| 体重 | 2650.0 g (93.48 oz) | 566.5 g (19.98 oz) |
| 食性 | Frugivorous; eats large fruits, seeds, and invertebrates on ground of Colombian lowland forests. Critically endangered. | Frugivorous and folivorous; eats fruits, berries, leaves, and buds in Central American forest edges and … |
| 一腹卵数 | 2 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Blue-billed Curassow
Produces a deep, resonant booming call; male gives guttural contact calls. Critically Endangered; voice rarely heard in the wild in remnant Colombian forest.
Grey-headed Chachalaca
Produces a loud, raucous cha-cha-lac chorus at dawn; individual notes are hoarser and lower than Plain Chachalaca. Groups call antiphonally from treetops in Central American forest edge.
Geographic Range & Migration
Blue-billed Curassow
Endemic to northwestern Colombia in the Sierra Nevada de Santa Marta and nearby ranges. Found in humid forest at 200-1,000 m. Critically endangered.
Grey-headed Chachalaca
Resident from Honduras south through Central America to Panama and northwestern Colombia. Found in humid forest and dense vegetation.
保全状況
Blue-billed Curassow
Grey-headed Chachalaca
How to Tell Them Apart
Blue-billed Curassow
Male is glossy black with white belly and curly black crest; distinctive bright blue bill with no yellow knob. Female is barred black-and-chestnut with curly crest; blue bill separates it …
Grey-headed Chachalaca
Olive-brown body; head and neck distinctly grey contrasting with brownish back; bare reddish throat skin; underparts pale buff-grey; tail graduated, brown with paler tips on outer feathers.
About These Birds
Blue-billed Curassow
ブルービルドクラシャウ（Crax alberti）— コロンビア北部の低地雨林に固有のホッコ類。青い嘴基部の大きなコブが特徴。絶滅危惧種。
Grey-headed Chachalaca
A medium-sized cracid (~565 g) of family Cracidae, with a distinctive grey head and olive-brown body. Inhabits humid tropical forests, forest edges, and scrublands from Honduras south to northwestern Colombia. Forages in groups for fruits, berries, leaves, and insects in the understory and canopy. Least Concern; common throughout its range in Central American lowlands.