Black Guan vs Rufous-headed Chachalaca
Chamaepetes unicolor в сравнении с Ortalis erythroptera
Side-by-Side Comparison
| Характеристика | Black Guan | Rufous-headed Chachalaca |
|---|---|---|
| Научное название | Chamaepetes unicolor | Ortalis erythroptera |
| Отряд | Galliformes | Galliformes |
| Семейство | Cracidae | Cracidae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | — | — |
| Размах крыльев | 58,1 cm (22.9 in) | 43,8 cm (17.2 in) |
| Масса | 1135,0 g (40.04 oz) | 632,5 g (22.31 oz) |
| Питание | Eats fruits, berries, leaves, and small invertebrates in Costa Rican and Panamanian montane forests. Forages … | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … |
| Размер кладки | 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-headed Chachalaca
Emits a loud, raucous chachalaca chorus; individual calls are slightly higher than Rufous-vented. Dawn choruses carry across Ecuadorian and Peruvian coastal dry forest.
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-headed Chachalaca
Resident in western Ecuador and northwestern Peru. Found in tropical deciduous forest and scrub in the Tumbes-Chocó-Magdalena region.
Охранный статус
Black Guan
Rufous-headed 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-headed Chachalaca
Brownish-olive body; head and upper neck warm rufous-cinnamon, distinctly contrasting with greyish-brown back; bare reddish throat wattle; underparts pale buff; tail dark with pale outer tips.
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-headed Chachalaca
A medium-sized cracid (~630 g) of family Cracidae, with a striking rufous head. Inhabits humid and deciduous forests, forest edges, and scrub in western Ecuador and northwestern Peru. Feeds on fruits and leaves in the forest understory and canopy. Vulnerable due to extensive deforestation in the Tumbesian region, one of the world's most threatened biodiversity hotspots.