Ferruginous Partridge vs Dusky Grouse
Caloperdix oculeus 비교 대상 Dendragapus obscurus
Side-by-Side Comparison
| 속성 | Ferruginous Partridge | Dusky Grouse |
|---|---|---|
| 학명 | Caloperdix oculeus | Dendragapus obscurus |
| 목 | Galliformes | Galliformes |
| 과 | Phasianidae | Phasianidae |
| 보전 상태 | Near Threatened | Least Concern |
| 체장 | — | — |
| 날개 폭 | 28.3 cm (11.1 in) | 45.3 cm (17.8 in) |
| 체중 | 210.5 g (7.43 oz) | 1118.0 g (39.44 oz) |
| 식성 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Eats conifer needles, especially fir and pine, in winter; berries, leaves, and invertebrates in summer. … |
| 산란 수 | 8-10 | 4-10 |
| 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.
Dusky Grouse
Low, deep hooting 'hoo-hoo-hoo-hoo-hoo' by males from conifer branches; ventriloquial and owl-like. Alarm is a sharp series of 'kuk-kuk' clucks. Female produces soft clucking contact notes.
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.
Dusky Grouse
Resident in the Rocky Mountains and coastal ranges of western North America from British Columbia south to New Mexico at 1,000-3,500 m.
보전 상태
Ferruginous Partridge
Dusky 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.
Dusky Grouse
Male dark greyish-brown overall; pale grey tail with broad grey terminal band; yellow-orange eye-comb; bare yellow-purple neck air sacs visible in display. Female mottled brown and buff with darker barring.
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.
Dusky Grouse
약 1.1kg의 Phasianidae 과 대형 뇌조로 수컷은 노란-주황색 눈 볏과 부풀릴 수 있는 보라색 목 주머니를 가진 어두운 회색 깃털. 브리티시컬럼비아에서 뉴멕시코까지 로키 산맥의 산지 침엽수림에 서식. 겨울에는 침엽수 잎, 여름에는 장과류와 곤충을 먹는다. 수직 이동을 한다. 최소 관심; 북아메리카 서부 산지림에서 흔하다.