West Mexican Chachalaca vs Highland Guan
Ortalis poliocephala в сравнении с Penelopina nigra
Side-by-Side Comparison
| Характеристика | West Mexican Chachalaca | Highland Guan |
|---|---|---|
| Научное название | Ortalis poliocephala | Penelopina nigra |
| Отряд | Galliformes | Galliformes |
| Семейство | Cracidae | Cracidae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | — | — |
| Размах крыльев | 52,0 cm (20.5 in) | 47,9 cm (18.9 in) |
| Масса | 760,0 g (26.81 oz) | 890,0 g (31.39 oz) |
| Питание | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … | Eats fruits, berries, seeds, and leaves in Central American highland forests. Forages in forest mid-storey … |
| Размер кладки | 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.
Highland Guan
Produces a loud, resonant cackling call and wing-whirring display. The male's calls carry through Central American cloud forest; wing-whirring display is a key feature of this highland cracid.
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.
Highland Guan
Resident in the highlands of Mexico and Central America from Chiapas south to Nicaragua at 1,200-3,000 m. Found in cloud forest and pine-oak woodland.
Охранный статус
West Mexican Chachalaca
Highland 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 …
Highland Guan
Strongly dimorphic: male is entirely glossy black with bare red facial skin and red legs; female is dark brown heavily barred and streaked with black, with bare red facial skin.
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.
Highland Guan
A medium-sized cracid (~890 g) of family Cracidae, sexually dimorphic—males glossy black with red wattle, females brown. Inhabits cloud forests and humid montane forests in the highlands of Mexico, Guatemala, Honduras, El Salvador, and Nicaragua. Arboreal frugivore. Vulnerable due to deforestation and hunting in the fragmented highlands of Mesoamerica.