Ferruginous Partridge vs Black-billed Capercaillie
Caloperdix oculeus 比較対象 Tetrao urogalloides
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Black-billed Capercaillie |
|---|---|---|
| 学名 | Caloperdix oculeus | Tetrao urogalloides |
| 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) | 68.2 cm (26.9 in) |
| 体重 | 210.5 g (7.43 oz) | 2957.5 g (104.32 oz) |
| 食性 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Subsists mainly on larch needles in winter; takes berries, buds, and insects during the warmer … |
| 一腹卵数 | 8-10 | 5-10 |
| 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.
Black-billed Capercaillie
Similar to Western Capercaillie but generally higher-pitched; ticking phase faster, grinding phase shorter. Siberian larch forest species. Alarm is a loud bark; females give soft clucking brood calls.
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.
Black-billed Capercaillie
Resident of coniferous taiga in eastern Russia from the Lena River to the Pacific coast, Kamchatka, and northeastern China.
保全状況
Ferruginous Partridge
Black-billed 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.
Black-billed Capercaillie
Male uniformly glossy blue-black with slight greenish sheen on breast; smaller white wing spots than Western Capercaillie; black bill. Female barred rufous-buff and dark brown, paler below than congener.
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。
Black-billed Capercaillie
カラフトライチョウはシベリアと極東アジアの針葉樹林に生息する大型のライチョウの仲間です。雄の求愛ディスプレイは特徴的です。