Rufous-bellied Chachalaca vs Sira Curassow
Ortalis wagleri comparé à Pauxi koepckeae
Side-by-Side Comparison
| Attribut | Rufous-bellied Chachalaca | Sira Curassow |
|---|---|---|
| Nom scientifique | Ortalis wagleri | Pauxi koepckeae |
| Ordre | Galliformes | Galliformes |
| Famille | Cracidae | Cracidae |
| Statut de conservation | Least Concern | Critically Endangered |
| Longueur | — | — |
| Envergure | 48,3 cm (19.0 in) | 93,6 cm (36.9 in) |
| Poids | 834,0 g (29.42 oz) | 3745,0 g (132.10 oz) |
| Régime alimentaire | Feeds on fruits, berries, seeds, leaves, and small invertebrates in Mexican thorn scrub and deciduous … | Eats large seeds, fruits, and invertebrates in Peruvian foothill forests. Critically endangered; diet poorly documented. |
| Taille de la couvée | 3 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Sira Curassow
Produces a deep, resonant booming call. Critically Endangered; calls are essentially unknown in the wild; captive birds give deep, resonant booming typical of Pauxi curassows.
Geographic Range & Migration
Rufous-bellied Chachalaca
Endemic to the Pacific coast of western Mexico from Sinaloa to Colima. Found in tropical dry forest and thorn scrub.
Sira Curassow
Endemic to the Sira Cordillera of central Peru in Ucayali and Huánuco at 600-1,400 m. Found in humid foothill forest. Critically endangered.
Statut de conservation
Rufous-bellied Chachalaca
Sira Curassow
How to Tell Them Apart
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.
Sira Curassow
Glossy black overall; white lower belly; pale blue-grey conical casque on forehead similar to Horned Curassow; red bill and red legs. Extremely rare and poorly known; casque shape and large …
About These Birds
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.
Sira Curassow
A large cracid (~3.7 kg) of family Cracidae, with a stout turquoise casque and black-and-white plumage. Restricted to the Sira mountains of central Peru. Inhabits humid montane and foothill forests at 600–1,600 m elevation. Forages on the forest floor for fruits and seeds. Critically Endangered with an extremely small range; threatened by logging, agricultural conversion, and hunting.