Rufous-headed Chachalaca vs Marail Guan
Ortalis erythroptera comparado com Penelope marail
Side-by-Side Comparison
| Atributo | Rufous-headed Chachalaca | Marail Guan |
|---|---|---|
| Nome científico | Ortalis erythroptera | Penelope marail |
| Ordem | Galliformes | Galliformes |
| Família | Cracidae | Cracidae |
| Estado de conservação | Vulnerable | Least Concern |
| Comprimento | — | — |
| Envergadura | 43,8 cm (17.2 in) | 64,3 cm (25.3 in) |
| Peso | 632,5 g (22.31 oz) | 1067,0 g (37.64 oz) |
| Dieta | Frugivorous; eats fruits, berries, seeds, and leaves in Pacific slope forests and forest edges of … | Frugivorous; eats fruits, berries, seeds, and leaves in Amazonian and Guianan lowland rainforests. Also takes … |
| Tamanho da postura | 3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Marail Guan
Produces a loud, resonant honking cackle; wing-whirring display is loud and sustained. The carrying honk and powerful wing-whirr echo through Amazonian and Guyanan terra firme forest.
Geographic Range & Migration
Rufous-headed Chachalaca
Resident in western Ecuador and northwestern Peru. Found in tropical deciduous forest and scrub in the Tumbes-Chocó-Magdalena region.
Marail Guan
Resident in the Guiana Highlands and adjacent areas of Venezuela, Guyana, Suriname, and northern Brazil. Found in montane and foothill forest.
Estado de conservação
Rufous-headed Chachalaca
Marail Guan
How to Tell Them Apart
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.
Marail Guan
Dark brownish-olive overall; neck and upper breast streaked white; bare red throat wattle; lower underparts rich rufous-chestnut; back with greenish gloss; tail long and dark brown.
About These Birds
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.
Marail Guan
A medium-large cracid (~1.1 kg) of family Cracidae, with olive-brown plumage and a red wattle. Inhabits humid lowland and foothill tropical forests of the Guiana Shield, including Suriname, Guyana, French Guiana, and northern Brazil. Arboreal, feeding on fruits and seeds. Least Concern; widespread in the Guiana region with intact forest cover supporting healthy populations.