Little Chachalaca vs Rufous-bellied Chachalaca
Ortalis motmot 比較対象 Ortalis wagleri
Side-by-Side Comparison
| 属性 | Little Chachalaca | Rufous-bellied Chachalaca |
|---|---|---|
| 学名 | Ortalis motmot | Ortalis wagleri |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 41.4 cm (16.3 in) | 48.3 cm (19.0 in) |
| 体重 | 482.5 g (17.02 oz) | 834.0 g (29.42 oz) |
| 食性 | Feeds on fruits, berries, seeds, and leaves in Amazonian and Guianan forest edges and gallery … | Feeds on fruits, berries, seeds, leaves, and small invertebrates in Mexican thorn scrub and deciduous … |
| 一腹卵数 | 3 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Little Chachalaca
Produces a loud, raucous chachalaca chorus; voice is somewhat higher-pitched than larger species. Dawn choruses echo across Amazonian and Guyanan lowland forest edge.
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
Little Chachalaca
Resident in the Guiana region from Venezuela and the Guianas south into northern Brazil. Found in lowland forest.
Rufous-bellied Chachalaca
Endemic to the Pacific coast of western Mexico from Sinaloa to Colima. Found in tropical dry forest and thorn scrub.
保全状況
Little Chachalaca
Rufous-bellied Chachalaca
How to Tell Them Apart
Little Chachalaca
Small; olive-brown body with grey head; bare reddish throat skin; underparts pale buff-grey; tail brownish with whitish tips to outer feathers. One of the smallest chachalacas, otherwise typical in pattern.
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
Little Chachalaca
A medium-sized cracid (~480 g) of family Cracidae, one of the smaller chachalacas. Found in humid forests, second growth, and forest edges across the Guianas and northern Brazil to Amazonian Colombia. Feeds on fruits and seeds in the canopy and understory. Least Concern; widespread across Amazonian lowlands and relatively tolerant of habitat disturbance.
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.