Horned Guan vs Grey-headed Chachalaca
Oreophasis derbianus مقارنةً بـ Ortalis cinereiceps
Side-by-Side Comparison
| السمة | Horned Guan | Grey-headed Chachalaca |
|---|---|---|
| الاسم العلمي | Oreophasis derbianus | Ortalis cinereiceps |
| الرتبة | Galliformes | Galliformes |
| الفصيلة | Cracidae | Cracidae |
| حالة الحفاظ | Endangered | Least Concern |
| الطول | — | — |
| طول الجناح | 74,1 cm (29.2 in) | 41,1 cm (16.2 in) |
| الوزن | 2072,8 g (73.12 oz) | 566,5 g (19.98 oz) |
| النظام الغذائي | Frugivorous; eats fruits, especially bromeliads, leaves, and invertebrates in Mexican and Guatemalan cloud forests. Endangered. | Frugivorous and folivorous; eats fruits, berries, leaves, and buds in Central American forest edges and … |
| عدد البيض في الوضع | 2 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Horned Guan
Emits a deep, resonant booming call and loud wing-whirring display. The extraordinary, far-carrying boom is one of the most powerful calls in the cloud forest; wing-whirring is vigorous.
Grey-headed Chachalaca
Produces a loud, raucous cha-cha-lac chorus at dawn; individual notes are hoarser and lower than Plain Chachalaca. Groups call antiphonally from treetops in Central American forest edge.
Geographic Range & Migration
Horned Guan
Endemic to the volcanic highlands of Chiapas, Mexico, and adjacent Guatemala at 2,000-3,300 m. Found in cloud forest. Endangered.
Grey-headed Chachalaca
Resident from Honduras south through Central America to Panama and northwestern Colombia. Found in humid forest and dense vegetation.
حالة الحفاظ
Horned Guan
Grey-headed Chachalaca
How to Tell Them Apart
Horned Guan
Black above with white streaking; white below with black streaking; extraordinary erect red horn on crown; bare red facial skin; white iris; legs red. The horn is unique among cracids.
Grey-headed Chachalaca
Olive-brown body; head and neck distinctly grey contrasting with brownish back; bare reddish throat skin; underparts pale buff-grey; tail graduated, brown with paler tips on outer feathers.
About These Birds
Horned Guan
A large cracid (~2 kg) of family Cracidae, unique for a bright red bony horn projecting from the crown. Endemic to cloud forests above 2,000 m in the Sierra Madre de Chiapas of Mexico and adjacent Guatemala. Feeds on fruits and leaves in the forest canopy. Endangered; one of the world's most distinctive birds, threatened by cloud forest loss and hunting.
Grey-headed Chachalaca
A medium-sized cracid (~565 g) of family Cracidae, with a distinctive grey head and olive-brown body. Inhabits humid tropical forests, forest edges, and scrublands from Honduras south to northwestern Colombia. Forages in groups for fruits, berries, leaves, and insects in the understory and canopy. Least Concern; common throughout its range in Central American lowlands.