Ferruginous Partridge vs Siberian Grouse
Caloperdix oculeus 比較対象 Falcipennis falcipennis
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Siberian Grouse |
|---|---|---|
| 学名 | Caloperdix oculeus | Falcipennis falcipennis |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Near Threatened | Near Threatened |
| 体長 | — | — |
| 翼開長 | 28.3 cm (11.1 in) | 35.8 cm (14.1 in) |
| 体重 | 210.5 g (7.43 oz) | 676.25 g (23.85 oz) |
| 食性 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Feeds heavily on conifer needles, especially larch and spruce; supplements with berries, buds, and insects … |
| 一腹卵数 | 8-10 | 6-12 |
| 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.
Siberian Grouse
Males display with soft, low 'bup-bup-bup' drumming and fanned tail vibration; rarely vocal. Alarm is a quiet 'tsip'. Contact calls are soft clucks. Very silent overall; reliant on visual displays.
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.
Siberian Grouse
Resident of boreal coniferous forests in eastern Russia, from the Yenisei River east to the Sea of Okhotsk and Sakhalin Island.
保全状況
Ferruginous Partridge
Siberian Grouse
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.
Siberian Grouse
Male sooty-black overall with white-spotted breast and flanks; bold white terminal band on dark tail; red superciliary comb. Female cryptically barred rufous-brown and black throughout.
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。
Siberian Grouse
ロシア極東のタイガに生息するライチョウで、体重約676g。準絶滅危惧種に指定されている。