Montezuma Quail vs Nahan's Partridge
Cyrtonyx montezumae 比較対象 Ptilopachus nahani
Side-by-Side Comparison
| 属性 | Montezuma Quail | Nahan's Partridge |
|---|---|---|
| 学名 | Cyrtonyx montezumae | Ptilopachus nahani |
| 目 | Galliformes | Galliformes |
| 科 | Odontophoridae | Odontophoridae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 24.0 cm (9.4 in) | 26.8 cm (10.6 in) |
| 体重 | 185.5 g (6.54 oz) | 278.5 g (9.82 oz) |
| 食性 | Omnivorous; digs for bulbs, tubers, seeds, and invertebrates with its stout bill in Mexican pine-oak … | Forages in Ugandan and Congolese rainforest understorey for invertebrates and seeds. Little-studied; diet poorly documented. |
| 一腹卵数 | 2-15 | 4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Montezuma Quail
Eerie, descending wavering whistle 'wheeeoo' given by male from grass; ghostly and ventriloquial. Alarm is a low nasal 'wee-wee'; flushed birds produce loud burst of wing beats.
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
Montezuma Quail
Resident in the mountains of Mexico, Arizona, New Mexico, and Texas at 1,400-3,000 m. Found in oak and pine-oak woodland.
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
Montezuma Quail
Nahan's Partridge
How to Tell Them Apart
Montezuma Quail
Male has harlequin black-and-white face with bold white stripes and spots; chestnut-brown body with white spots on flanks; blue-grey crest; female cryptically mottled brown with faint facial pattern.
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
Montezuma Quail
A small rotund New World quail (~185 g) of family Odontophoridae, males with a harlequin-patterned black and white face. Inhabits pine-oak and grassland habitats in montane areas from Arizona and Texas to Honduras. Forages by digging bulbs and tubers with strong curved claws. Least Concern; cryptic and rarely seen; populations declining with overgrazing of native bunchgrass.
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.