Ferruginous Partridge vs Western Capercaillie
Caloperdix oculeus 比較対象 Tetrao urogallus
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Western Capercaillie |
|---|---|---|
| 学名 | Caloperdix oculeus | Tetrao urogallus |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 28.3 cm (11.1 in) | 69.5 cm (27.4 in) |
| 体重 | 210.5 g (7.43 oz) | 3072.5 g (108.38 oz) |
| 食性 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Relies on pine and other conifer needles in winter; forages for berries, shoots, herbs, and … |
| 一腹卵数 | 8-10 | 4-12 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Ferruginous Partridge
Sharp, staccato 'krik-krik-krik' calls from lowland rainforest; often given in duet. Alarm is a loud, rapid chattering rattle; contact notes between pairs soft and clucking.
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
Ferruginous Partridge
Resident in lowland rainforest of the Thai-Malay Peninsula, Sumatra, and Borneo. Found in flat or gently sloping lowland forest.
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
Ferruginous Partridge
Western Capercaillie
How to Tell Them Apart
Ferruginous Partridge
Rich ferruginous (deep rusty-orange) overall; upperparts black-and-rufous barred; flanks black boldly spotted white; bare red facial skin; underparts rufous-orange; one of the most vividly coloured Southeast Asian partridges.
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
Ferruginous Partridge
体重約210gの錆赤色・黒白の斑点を持つヤマウズラ。マレーシア・スマトラ・ボルネオに生息する準絶滅危惧種。
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。