Grey-headed Chachalaca vs White-browed Guan
Ortalis cinereiceps comparado com Penelope jacucaca
Side-by-Side Comparison
| Atributo | Grey-headed Chachalaca | White-browed Guan |
|---|---|---|
| Nome científico | Ortalis cinereiceps | Penelope jacucaca |
| Ordem | Galliformes | Galliformes |
| Família | Cracidae | Cracidae |
| Estado de conservação | Least Concern | Vulnerable |
| Comprimento | — | — |
| Envergadura | 41,1 cm (16.2 in) | 56,1 cm (22.1 in) |
| Peso | 566,5 g (19.98 oz) | 1438,0 g (50.72 oz) |
| Dieta | Frugivorous and folivorous; eats fruits, berries, leaves, and buds in Central American forest edges and … | Eats fruits, berries, seeds, and leaves in Brazilian caatinga dry forests. Vulnerable; forages in canopy … |
| Tamanho da postura | 3 | 2-3 |
| 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.
White-browed Guan
Emits a loud, resonant honking cackle and wing-whirring display. Calls carry through Caatinga and dry Brazilian forest; one of the more arid-adapted Penelope guans.
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.
White-browed Guan
Endemic to the caatinga of northeastern Brazil in Pernambuco, Alagoas, Bahia, and Piauí. Found in dry scrubland.
Estado de conservação
Grey-headed Chachalaca
White-browed 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.
White-browed Guan
Dark brownish-black; distinctive broad white supercilium above bare red facial skin; throat wattled red; breast finely streaked white; lower belly rufous-chestnut; tail long and dark.
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.
White-browed Guan
A large cracid (~1.4 kg) of family Cracidae, with a prominent white supercilium. Endemic to the caatinga scrublands and dry forests of northeastern Brazil. Inhabits dry deciduous forests, gallery forest, and scrubby vegetation. Arboreal frugivore. Vulnerable; one of the few large cracids adapted to Brazil's semi-arid caatinga, threatened by habitat loss and hunting.