West Mexican Chachalaca vs Cauca Guan
Ortalis poliocephala เปรียบเทียบกับ Penelope perspicax
Side-by-Side Comparison
| คุณสมบัติ | West Mexican Chachalaca | Cauca Guan |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Ortalis poliocephala | Penelope perspicax |
| อันดับ | Galliformes | Galliformes |
| วงศ์ตระกูล | Cracidae | Cracidae |
| สถานะการอนุรักษ์ | Least Concern | Vulnerable |
| ความยาว | — | — |
| กว้างปีก | 52.0 cm (20.5 in) | 65.0 cm (25.6 in) |
| น้ำหนัก | 760.0 g (26.81 oz) | 1197.0 g (42.22 oz) |
| อาหาร | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … | Frugivorous; eats fruits, berries, and leaves in Colombian Cauca Valley forests. Critically endangered with very … |
| จำนวนไข่ | 2-3 | 2 |
| 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.
Cauca Guan
Produces a loud, honking cackle and powerful wing-whirring display. Critically endangered; calls carry across Colombian Cauca Valley forest fragments; wing-whirr is diagnostic.
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.
Cauca Guan
Endemic to the Cauca Valley of Colombia. Found in humid forest remnants at 1,000-2,000 m. Critically endangered.
สถานะการอนุรักษ์
West Mexican Chachalaca
Cauca 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 …
Cauca Guan
Dark brownish-black above; neck and breast streaked white; bare red throat skin; lower underparts deep rufous-chestnut; back faintly glossed; tail dark brown. White streaking is bolder than in most Penelope …
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.
Cauca Guan
A medium-large cracid (~1.2 kg) of family Cracidae, with olive-brown plumage and a red throat wattle. Endemic to the upper Cauca Valley of Colombia at 1,200–2,400 m elevation. Inhabits remnant humid Andean forests. Arboreal, feeding on fruits and seeds. Vulnerable due to severe deforestation in one of Colombia's most densely populated valleys and ongoing hunting pressure.