Speckled Chachalaca vs West Mexican Chachalaca
Ortalis guttata 比較対象 Ortalis poliocephala
Side-by-Side Comparison
| 属性 | Speckled Chachalaca | West Mexican Chachalaca |
|---|---|---|
| 学名 | Ortalis guttata | Ortalis poliocephala |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 38.5 cm (15.2 in) | 52.0 cm (20.5 in) |
| 体重 | 502.25 g (17.72 oz) | 760.0 g (26.81 oz) |
| 食性 | Eats fruits, berries, seeds, and leaves in Amazonian forest edges and gallery forest. Also takes … | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … |
| 一腹卵数 | 3-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Speckled Chachalaca
Produces a loud, raucous chachalaca chorus; individual calls have a slightly lower, coarser quality. Dawn choruses carry across Amazonian and Cerrado forest edge at sunrise.
West Mexican Chachalaca
Emits a loud, raucous chachalaca chorus; individual calls are slightly lower than Plain Chachalaca. Dawn choruses boom across Mexico's Pacific slope thornscrub and tropical dry forest.
Geographic Range & Migration
Speckled Chachalaca
Resident in the Amazon Basin from eastern Peru and Ecuador east to Brazil and the Guianas. Found in lowland rainforest.
West Mexican Chachalaca
Endemic to the Pacific coast of Mexico from Sonora south to Jalisco. Found in tropical dry forest and thorn scrub.
保全状況
Speckled Chachalaca
West Mexican Chachalaca
How to Tell Them Apart
Speckled Chachalaca
Olive-brown upperparts with fine pale buff speckling on breast and foreneck; grey head; bare reddish throat; lower underparts pale buff; tail dark brown with whitish outer tips.
West Mexican Chachalaca
Olive-brown above with greyish head; bare reddish throat skin; underparts pale grey with buff-olive flanks; tail long and dark brown with white tips on outer feathers. Overall paler than eastern …
About These Birds
Speckled Chachalaca
A medium-sized cracid (~500 g) of family Cracidae, with finely speckled neck and breast feathers. Inhabits forest edges, scrubby second growth, and riverine thickets across Amazonian South America. Social and highly vocal, foraging in groups for fruits, berries, and seeds in the understory and lower canopy. Least Concern; widespread and common across Amazonia.
West Mexican Chachalaca
A large chachalaca (~760 g) of family Cracidae, with a grey head and brownish body. Endemic to Mexico, inhabiting tropical dry and semi-deciduous forests of the Pacific coast from Jalisco to Oaxaca. Forages in groups for fruits, leaves, and seeds in forest canopy and understory. Least Concern; well adapted to secondary growth and forest edges throughout its restricted Mexican range.