Marbled Wood-quail vs Nahan's Partridge
Odontophorus gujanensis 比較対象 Ptilopachus nahani
Side-by-Side Comparison
| 属性 | Marbled Wood-quail | Nahan's Partridge |
|---|---|---|
| 学名 | Odontophorus gujanensis | Ptilopachus nahani |
| 目 | Galliformes | Galliformes |
| 科 | Odontophoridae | Odontophoridae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 28.7 cm (11.3 in) | 26.8 cm (10.6 in) |
| 体重 | 318.25 g (11.23 oz) | 278.5 g (9.82 oz) |
| 食性 | Forages in Amazonian and Guianan forest floor for seeds, invertebrates, and small fruits. Scratches leaf … | Forages in Ugandan and Congolese rainforest understorey for invertebrates and seeds. Little-studied; diet poorly documented. |
| 一腹卵数 | 4 | 4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Marbled Wood-quail
Duetting pairs produce loud, resonant 'co-PO-co' calls from forest floor; far-carrying and owl-like in quality. Dawn chorus pairs call in rapid antiphonal sequence.
Nahan's Partridge
Produces a soft, repeated whistled call and quiet clucking series. Calls are poorly documented; this Vulnerable forest partridge is secretive on Uganda's forest floor.
Geographic Range & Migration
Marbled Wood-quail
Resident from Panama and Venezuela south to Bolivia and Amazonian Brazil. Found in lowland and foothill rainforest and forest edges.
Nahan's Partridge
Resident in the rainforests of Uganda and adjacent Democratic Republic of Congo. Found in lowland and foothill rainforest. Poorly known.
保全状況
Marbled Wood-quail
Nahan's Partridge
How to Tell Them Apart
Marbled Wood-quail
Rich rufous-brown above with intricate black-and-buff marbling; rufous-orange bare eye-ring; underparts buffy-brown with fine black barring; short spiny crest; sexes similar.
Nahan's Partridge
Dark brown overall, finely barred and streaked buff; underparts paler brown with buff streaking; bare reddish eye-ring; tail short and rufous; sexes similar. Forest floor cryptic coloration.
About These Birds
Marbled Wood-quail
A medium-sized New World quail (~320 g) of family Odontophoridae, with intricately marbled brown plumage and a small crest. Inhabits humid lowland and foothill forests across northern and central South America from Colombia to Brazil. Forages on the forest floor in pairs or small groups for seeds and invertebrates. Least Concern; widespread in Amazonian and Guianan forests.
Nahan's Partridge
A small partridge (~280 g) of family Odontophoridae, dark reddish-brown with black barring. Endemic to lowland primary rainforest in Uganda and the Democratic Republic of Congo. Highly terrestrial, foraging on the forest floor for seeds, berries, and invertebrates. Vulnerable; requires intact primary forest and is threatened by widespread logging and agricultural conversion in Central Africa.