Bearded Wood-partridge vs Nahan's Partridge
Dendrortyx barbatus so với Ptilopachus nahani
Side-by-Side Comparison
| Thuộc Tính | Bearded Wood-partridge | Nahan's Partridge |
|---|---|---|
| Tên Khoa Học | Dendrortyx barbatus | Ptilopachus nahani |
| Bộ | Galliformes | Galliformes |
| Họ | Odontophoridae | Odontophoridae |
| Tình Trạng Bảo Tồn | Vulnerable | Vulnerable |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 30,1 cm (11.9 in) | 26,8 cm (10.6 in) |
| Khối Lượng | 407,5 g (14.37 oz) | 278,5 g (9.82 oz) |
| Chế Độ Ăn | Forages in Mexican cloud forests for seeds, invertebrates, and small fruits. Critically endangered; diet poorly … | Forages in Ugandan and Congolese rainforest understorey for invertebrates and seeds. Little-studied; diet poorly documented. |
| Số Trứng | 4-8 | 4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Bearded Wood-partridge
Emits a loud, resonant hooting call similar to other Dendrortyx wood-partridges. The owl-like hooting carries through cloud forest; calls are poorly differentiated from Long-tailed.
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
Bearded Wood-partridge
Endemic to cloud forest in the Sierra de Juárez, Oaxaca, Mexico, and adjacent Veracruz at 1,500-2,500 m. Rarely observed.
Nahan's Partridge
Resident in the rainforests of Uganda and adjacent Democratic Republic of Congo. Found in lowland and foothill rainforest. Poorly known.
Tình Trạng Bảo Tồn
Bearded Wood-partridge
Nahan's Partridge
How to Tell Them Apart
Bearded Wood-partridge
Rufous-brown above; grey head with white supercilium; distinct black-and-white beard streaks on lower throat and chin; breast streaked black and white; flanks rufous-brown; belly pale buff.
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
Bearded Wood-partridge
A medium-sized New World quail (~405 g) of family Odontophoridae, with a distinct facial streak resembling a beard. Endemic to cloud forest in a restricted area of the Sierra Madre Oriental of eastern Mexico. Forages on the ground for seeds and invertebrates. Vulnerable; critically restricted range in highly fragmented Mexican highland forests, with ongoing habitat loss from agricultural expansion.
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.