Ferruginous Partridge vs Sooty Grouse
Caloperdix oculeus 比較対象 Dendragapus fuliginosus
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Sooty Grouse |
|---|---|---|
| 学名 | Caloperdix oculeus | Dendragapus fuliginosus |
| 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) | 44.6 cm (17.6 in) |
| 体重 | 210.5 g (7.43 oz) | 1016.25 g (35.85 oz) |
| 食性 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Feeds on conifer needles, especially Douglas-fir, in winter; berries, leaves, seeds, and insects in summer. |
| 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.
Sooty Grouse
Deep, booming 'hoot-hoot-hoot-hoot-hoot' from treetop perch; inflated cervical sacs amplify resonance. Similar to Dusky Grouse but with subtle tonal differences. Alarm is rapid sharp clucking.
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.
Sooty Grouse
Resident along the Pacific coast and Cascade-Sierra ranges from Alaska south to northern California. Found in coastal coniferous forest.
保全状況
Ferruginous Partridge
Sooty 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.
Sooty Grouse
Male is dark sooty-grey; tail grey with broad pale grey terminal band; yellow eye-comb; bare pink-purple neck sac visible during display. Female mottled dark brown; overall darker than Dusky Grouse.
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。
Sooty Grouse
A large grouse (~1 kg) of family Phasianidae, males uniformly dark sooty-grey with yellow-orange eyecomb. Inhabits coastal and Pacific mountain forests from Alaska to California. Feeds on conifer needles, especially fir and hemlock, in winter; berries and invertebrates in summer. Migrates upslope in winter, opposite to most birds. Least Concern; common along the Pacific Coast mountain ranges.