Black Guan vs Rufous-bellied Chachalaca
Chamaepetes unicolor so với Ortalis wagleri
Side-by-Side Comparison
| Thuộc Tính | Black Guan | Rufous-bellied Chachalaca |
|---|---|---|
| Tên Khoa Học | Chamaepetes unicolor | Ortalis wagleri |
| Bộ | Galliformes | Galliformes |
| Họ | Cracidae | Cracidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 58,1 cm (22.9 in) | 48,3 cm (19.0 in) |
| Khối Lượng | 1135,0 g (40.04 oz) | 834,0 g (29.42 oz) |
| Chế Độ Ăn | Eats fruits, berries, leaves, and small invertebrates in Costa Rican and Panamanian montane forests. Forages … | Feeds on fruits, berries, seeds, leaves, and small invertebrates in Mexican thorn scrub and deciduous … |
| Số Trứng | 2-3 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Black Guan
Produces a loud, harsh cackling call and wing-whirring. Calls carry through Costa Rican and Panamanian cloud forest; deep cackling notes are lower-pitched than many Penelope guans.
Rufous-bellied Chachalaca
Produces a loud, deep raucous chorus; the lowest-pitched Ortalis chachalaca call. The deep, resonant cha-cha-LAC booms across Mexican Pacific slope deciduous forest at dawn.
Geographic Range & Migration
Black Guan
Endemic to the highlands of Costa Rica and western Panama at 1,600-3,000 m. Found in humid montane forest.
Rufous-bellied Chachalaca
Endemic to the Pacific coast of western Mexico from Sinaloa to Colima. Found in tropical dry forest and thorn scrub.
Tình Trạng Bảo Tồn
Black Guan
Rufous-bellied Chachalaca
How to Tell Them Apart
Black Guan
Uniformly glossy black throughout; bare bright blue facial skin around eye; no wattle or white markings; legs dark grey. One of the most uniformly coloured cracids; blue periorbital skin is …
Rufous-bellied Chachalaca
Olive-brown above; head grey with bare reddish throat; underparts strongly washed rufous-buff becoming deep rufous on belly and flanks; graduated tail dark brown with pale-tipped outer feathers.
About These Birds
Black Guan
A medium-large cracid (~1.1 kg) of family Cracidae, entirely sooty-black with blue facial skin. Endemic to montane cloud forests of Costa Rica and western Panama at 1,200–3,000 m elevation. Arboreal frugivore, feeding on berries and small fruits. Least Concern; restricted range but relatively common within Costa Rican Talamanca highlands and well represented in protected areas.
Rufous-bellied Chachalaca
A larger chachalaca (~834 g) of family Cracidae, with a rufous wash on the underparts. Endemic to the Pacific slope of northwestern Mexico, from Sonora to Jalisco. Inhabits tropical dry forest, thorn scrub, and deciduous woodland. Forages in groups on fruits, seeds, and insects. Least Concern; range restricted to the Mexican Pacific coast but populations remain stable.