Grey-headed Chachalaca vs Bearded Guan
Ortalis cinereiceps 比較対象 Penelope barbata
Side-by-Side Comparison
| 属性 | Grey-headed Chachalaca | Bearded Guan |
|---|---|---|
| 学名 | Ortalis cinereiceps | Penelope barbata |
| 目 | Galliformes | Galliformes |
| 科 | Cracidae | Cracidae |
| 保全状況 | Least Concern | Near Threatened |
| 体長 | — | — |
| 翼開長 | 41.1 cm (16.2 in) | 48.4 cm (19.1 in) |
| 体重 | 566.5 g (19.98 oz) | 822.8 g (29.02 oz) |
| 食性 | Frugivorous and folivorous; eats fruits, berries, leaves, and buds in Central American forest edges and … | Eats fruits, berries, seeds, leaves, and flowers in Andean cloud forests of Ecuador and Peru. … |
| 一腹卵数 | 3 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Bearded Guan
Emits a loud, deep honking cackle and produces wing-whirring in display. Calls are resonant; the wing-whirr display is loud and penetrating in Ecuadorian and Peruvian cloud forest.
Geographic Range & Migration
Grey-headed Chachalaca
Resident from Honduras south through Central America to Panama and northwestern Colombia. Found in humid forest and dense vegetation.
Bearded Guan
Resident in the Andes of southern Ecuador and northern Peru at 1,800-3,400 m. Found in humid montane forest.
保全状況
Grey-headed Chachalaca
Bearded Guan
How to Tell Them Apart
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.
Bearded Guan
Dark olive-brown above; throat with bare red skin and feathered lower edge resembling beard; neck and breast finely streaked white on dark brown; lower belly rufous-chestnut; tail dark brown.
About These Birds
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.
Bearded Guan
エクアドルとペルーのアンデス南部に生息するグアンで、特徴的なあごの垂れ皮を持つ。絶滅危惧種に指定されており、生息地の保護が急務となっている。