Red-billed Partridge vs Altai Snowcock
Arborophila rubrirostris 比較対象 Tetraogallus altaicus
Side-by-Side Comparison
| 属性 | Red-billed Partridge | Altai Snowcock |
|---|---|---|
| 学名 | Arborophila rubrirostris | Tetraogallus altaicus |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 26.2 cm (10.3 in) | 56.9 cm (22.4 in) |
| 体重 | 226.0 g (7.97 oz) | 2770.0 g (97.71 oz) |
| 食性 | Eats seeds, invertebrates, and small fruits on floor of Bornean montane forests. Little-studied; diet inferred … | Feeds on alpine grasses, seeds, berries, and shoots; digs for roots and bulbs in Altai … |
| 一腹卵数 | -- | 4-15 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Red-billed Partridge
Clear, high-pitched 'wheee-oop' whistle; slurred downward at end. Borneo endemic calling from montane understorey. Contact calls soft low clucks; alarm a sharp explosive 'pit' note.
Altai Snowcock
Loud, ringing whistled 'whi-WHEEE' echoing across Altai alpine slopes; deeper than Tibetan Snowcock due to larger size. Alarm is rapid barking. Calls at dawn from rocky ridgelines.
Geographic Range & Migration
Red-billed Partridge
Resident in the montane forests of Sumatra and Borneo at 600-2,000 m. Found in primary hill and montane forest.
Altai Snowcock
Resident of alpine rocky slopes and grassy hillsides in the Altai and Sayan mountains of Russia, Kazakhstan, and western Mongolia, at 2,000–4,000 m.
保全状況
Red-billed Partridge
Altai Snowcock
How to Tell Them Apart
Red-billed Partridge
Brown above streaked darker; throat and face white with fine dark scaling; breast grey; flanks grey with white streaks; distinctive bright red bill and red eye-ring; no rufous breast patches.
Altai Snowcock
Largest snowcock; grey-brown upperparts with buff streaks; white underparts with grey breast; rufous necklace streaks on lower neck; white outer tail in flight; whitish face with dark ear patch. Sexes …
About These Birds
Red-billed Partridge
A small partridge (~225 g) of family Phasianidae, distinguished by its bright red bill on dark plumage. Endemic to montane forests of Sumatra at 700–2,000 m elevation. Inhabits the forest floor and dense undergrowth of subtropical highland forest. Forages for seeds, berries, and invertebrates. Least Concern; restricted to Sumatran mountains but currently stable with sufficient forest cover remaining.
Altai Snowcock
アルタイセッケイはアルタイ山脈の高山地帯に生息する大型のキジ科の鳥です。険しい岩場の斜面を好み、植物の種子や葉を食べます。