Ferruginous Partridge vs Sage Grouse
Caloperdix oculeus 비교 대상 Centrocercus urophasianus
Side-by-Side Comparison
| 속성 | Ferruginous Partridge | Sage Grouse |
|---|---|---|
| 학명 | Caloperdix oculeus | Centrocercus urophasianus |
| 목 | Galliformes | Galliformes |
| 과 | Phasianidae | Phasianidae |
| 보전 상태 | Near Threatened | Near Threatened |
| 체장 | — | — |
| 날개 폭 | 28.3 cm (11.1 in) | 61.2 cm (24.1 in) |
| 체중 | 210.5 g (7.43 oz) | 2100.0 g (74.08 oz) |
| 식성 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Feeds almost entirely on sagebrush leaves and buds in winter; insects and forbs important in … |
| 산란 수 | 8-10 | 7-15 |
| 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.
Sage Grouse
Males produce extraordinary lek display: deep swishing 'swish-swish-coo-OO-ploop' using air sacs; low frequency, liquid, and otherworldly. Alarm is a cackling 'cac-cac'; females cluck softly.
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.
Sage Grouse
Resident in sagebrush habitat of the western United States and southwestern Canada. Found in semi-arid plains with Artemisia. Vulnerable.
보전 상태
Ferruginous Partridge
Sage 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.
Sage Grouse
Male has black belly, white breast, spiky pointed tail; yellow eye-combs; during display inflates yellow-green bare breast sacs exposing white feather ruff. Female mottled brown with dark belly patch.
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.
Sage Grouse
북미 최대 뇌조(약 2.1 kg)로 수컷은 구애 과시 중 노란 공기주머니를 부풀리는 뾰족한 꼬리를 가진다. 미국 서부와 캐나다의 쑥(Artemisia) 생태계에 먹이와 번식 모두 전적으로 의존한다. 주로 쑥 잎을 먹는다. 준위협종으로 쑥 서식지 광범위한 전환으로 개체수가 크게 감소했다.