Blue-billed Curassow vs West Mexican Chachalaca
Crax alberti compared with Ortalis poliocephala
Side-by-Side Comparison
| Attribute | Blue-billed Curassow | West Mexican Chachalaca |
|---|---|---|
| Scientific Name | Crax alberti | Ortalis poliocephala |
| Order | Galliformes | Galliformes |
| Family | Cracidae | Cracidae |
| Conservation Status | Critically Endangered | Least Concern |
| Length | — | — |
| Wingspan | 80.2 cm (31.6 in) | 52.0 cm (20.5 in) |
| Weight | 2650.0 g (93.48 oz) | 760.0 g (26.81 oz) |
| Diet | Frugivorous; eats large fruits, seeds, and invertebrates on ground of Colombian lowland forests. Critically endangered. | Frugivorous; eats fruits, berries, seeds, and leaves in West Mexican scrub and forest edges. Also … |
| Clutch Size | 2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Blue-billed Curassow
Produces a deep, resonant booming call; male gives guttural contact calls. Critically Endangered; voice rarely heard in the wild in remnant Colombian forest.
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.
Geographic Range & Migration
Blue-billed Curassow
Endemic to northwestern Colombia in the Sierra Nevada de Santa Marta and nearby ranges. Found in humid forest at 200-1,000 m. Critically endangered.
West Mexican Chachalaca
Endemic to the Pacific coast of Mexico from Sonora south to Jalisco. Found in tropical dry forest and thorn scrub.
Conservation Status
Blue-billed Curassow
West Mexican Chachalaca
How to Tell Them Apart
Blue-billed Curassow
Male is glossy black with white belly and curly black crest; distinctive bright blue bill with no yellow knob. Female is barred black-and-chestnut with curly crest; blue bill separates it …
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 …
About These Birds
Blue-billed Curassow
A large cracid (~2.7 kg) of family Cracidae, males black with a prominent blue bill and knob. Endemic to the lowland and foothill forests of northern Colombia. Forages on the forest floor for fruits, seeds, and invertebrates. Critically Endangered; one of Colombia's most threatened birds with severely fragmented populations due to extensive deforestation and uncontrolled hunting.
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.