Ferruginous Partridge vs Siberian Grouse
Caloperdix oculeus 对比 Falcipennis falcipennis
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Siberian Grouse |
|---|---|---|
| 学名 | Caloperdix oculeus | Falcipennis falcipennis |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保护状况 | Near Threatened | Near Threatened |
| 体长 | — | — |
| 翼展 | 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 … |
| 产卵数 | 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.
保护状况
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
锈红山鹑，约210克，锈红色有黑白斑点，分布于马来西亚、苏门答腊和婆罗洲，近危。
Siberian Grouse
西伯利亚松鸡，体重约676克。栖息于俄罗斯远东的茂密针叶林带。近危。