Ferruginous Partridge vs Sooty Grouse
Caloperdix oculeus 비교 대상 Dendragapus fuliginosus
Side-by-Side Comparison
| 속성 | Ferruginous Partridge | Sooty Grouse |
|---|---|---|
| 학명 | Caloperdix oculeus | Dendragapus fuliginosus |
| 목 | Galliformes | Galliformes |
| 과 | Phasianidae | Phasianidae |
| 보전 상태 | Near Threatened | Least Concern |
| 체장 | — | — |
| 날개 폭 | 28.3 cm (11.1 in) | 44.6 cm (17.6 in) |
| 체중 | 210.5 g (7.43 oz) | 1016.25 g (35.85 oz) |
| 식성 | 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. |
| 산란 수 | 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.
보전 상태
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
A small partridge (~210 g) of family Phasianidae, with rich ferruginous (rust-red) plumage and spotted black-and-white markings. Inhabits lowland and foothill rainforests in Malaysia, Sumatra, and Borneo. Secretive, foraging on the forest floor for seeds and invertebrates. Near Threatened; associated with primary and tall secondary forest, declining with ongoing logging and land conversion.
Sooty Grouse
약 1kg의 Phasianidae 과 대형 뇌조로 수컷은 균일한 어두운 그을린 회색 깃털에 노란-주황색 눈 볏. 알래스카에서 캘리포니아까지 해안·태평양 산지림에 서식. 겨울에는 전나무·솔 등 침엽수 잎을 먹고 여름에는 장과류와 무척추동물. 대부분의 새와 반대로 겨울에 상향 이동. 최소 관심; 태평양 해안 산맥에서 흔하다.