West Mexican Chachalaca vs Red-faced Guan
Ortalis poliocephala 比較対象 Penelope dabbenei
Side-by-Side Comparison
| 属性 | West Mexican Chachalaca | Red-faced Guan |
|---|---|---|
| 学名 | Ortalis poliocephala | Penelope dabbenei |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 52.0 cm (20.5 in) | 56.7 cm (22.3 in) |
| 体重 | 760.0 g (26.81 oz) | 1230.0 g (43.39 oz) |
| 食性 | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … | Frugivorous; eats fruits, berries, seeds, and leaves in Andean foothills forests of Bolivia and northwestern … |
| 一腹卵数 | 2-3 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Red-faced Guan
Produces a loud, resonant honking cackle and wing-whirring display. Calls carry through Bolivian and Argentinian Yungas cloud forest; wing-whirring is a diagnostic display.
Geographic Range & Migration
West Mexican Chachalaca
Endemic to the Pacific coast of Mexico from Sonora south to Jalisco. Found in tropical dry forest and thorn scrub.
Red-faced Guan
Resident in the foothills and mountains of northwestern Argentina and adjacent Bolivia at 500-1,800 m. Found in humid Yungas forest.
保全状況
West Mexican Chachalaca
Red-faced Guan
How to Tell Them Apart
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 …
Red-faced Guan
Dark brownish-olive; extensive bare bright red facial skin from lores to ear-coverts (larger than other guans); throat red-wattled; breast finely streaked white; lower belly rufous; tail dark.
About These Birds
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.
Red-faced Guan
アルゼンチン北部とボリビア南部の熱帯・亜熱帯林に生息するグアンで、分布域が限られた希少種。森林の伐採による生息地の消失が脅威となっている。