Crested Partridge vs Western Capercaillie
Rollulus rouloul 比較対象 Tetrao urogallus
Side-by-Side Comparison
| 属性 | Crested Partridge | Western Capercaillie |
|---|---|---|
| 学名 | Rollulus rouloul | Tetrao urogallus |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 27.2 cm (10.7 in) | 69.5 cm (27.4 in) |
| 体重 | 250.5 g (8.84 oz) | 3072.5 g (108.38 oz) |
| 食性 | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … | Relies on pine and other conifer needles in winter; forages for berries, shoots, herbs, and … |
| 一腹卵数 | 4-6 | 4-12 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Crested Partridge
High-pitched, thin whistled 'seee' repeated persistently; metallic and insect-like. Males call from forest floor, rarely seen. Alarm is an explosive low grunt followed by rapid wing beats.
Western Capercaillie
Extraordinary lek song: four phases — ticking, popping, cork-pulling, then grinding 'shhhhh'; lasts 6–8 seconds. Largest grouse song; audible 500+ m in European forest. Alarm is a loud bark.
Geographic Range & Migration
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Western Capercaillie
Resident of mature coniferous and mixed forests from Scotland and Scandinavia east through Russia to Siberia; relict populations in central Europe.
保全状況
Crested Partridge
Western Capercaillie
How to Tell Them Apart
Crested Partridge
Male is dark glossy green-black with vivid red-crimson erectile crest; red orbital skin; chestnut wings. Female is entirely bright emerald green with brown wings, red legs, and grey head; among …
Western Capercaillie
Strongly dimorphic. Male dark slate-blue with iridescent bottle-green gorget, brown wings, and red wattle over eye; fan-shaped tail. Female cryptically barred ochre, russet, and black with orange breast patch.
About These Birds
Crested Partridge
A small partridge (~250 g) of family Phasianidae, males with vivid crimson crest and iridescent green plumage. Found in lowland tropical rainforests of Southeast Asia including Thailand, Malaysia, Sumatra, and Borneo. Forages on the forest floor for fallen seeds, fruits, and invertebrates. Vulnerable; dependent on primary lowland forest, heavily impacted by deforestation and palm oil expansion.
Western Capercaillie
北ヨーロッパ・アジアの成熟した針葉樹林に生息するキジ科最大の鳥（体長60〜87cm）。雄は黒い体に赤い眉の皮膚、扇形の尾、白い翼下部が特徴的。Tetrao urogallus（オオライチョウ）の雄の求愛ダンスは独特で、翼を広げて特徴的な音楽的鳴き声を出しながら踊る。生息地の森林減少で多くの地域で個体数が激減。Phasianidae科。