Red-billed Curassow vs Grey-headed Chachalaca
Crax blumenbachii 对比 Ortalis cinereiceps
Side-by-Side Comparison
| 属性 | Red-billed Curassow | Grey-headed Chachalaca |
|---|---|---|
| 学名 | Crax blumenbachii | Ortalis cinereiceps |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保护状况 | Endangered | Least Concern |
| 体长 | — | — |
| 翼展 | 76.8 cm (30.2 in) | 41.1 cm (16.2 in) |
| 体重 | 3250.0 g (114.64 oz) | 566.5 g (19.98 oz) |
| 食性 | Eats large fruits, seeds, and invertebrates on Atlantic forest floor in Brazil. Critically endangered; diet … | Frugivorous and folivorous; eats fruits, berries, leaves, and buds in Central American forest edges and … |
| 产卵数 | 1-3 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Red-billed Curassow
Emits a deep, resonant booming call; contact calls are loud, guttural clucking. Endangered; the powerful boom echoes through remnant Atlantic forest; increasingly scarce.
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
Red-billed Curassow
Endemic to the Atlantic Forest of southeastern Brazil in Rio de Janeiro and Espírito Santo. Found in lowland humid forest. Critically endangered.
Grey-headed Chachalaca
Resident from Honduras south through Central America to Panama and northwestern Colombia. Found in humid forest and dense vegetation.
保护状况
Red-billed Curassow
Grey-headed Chachalaca
How to Tell Them Apart
Red-billed Curassow
Male is glossy black with white lower belly; curly black crest; vivid red bill with no knob; no yellow facial skin. Female is black barred chestnut; bright red bill is …
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
Red-billed Curassow
红嘴凤冠雉（Crax blumenbachii）— 巴西大西洋森林特有的大型凤冠雉。雄鸟具红色嘴瘤为特征。濒临灭绝。
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.