Tan-breasted Partridge vs Ferruginous Partridge
Arborophila rolli 비교 대상 Caloperdix oculeus
Side-by-Side Comparison
| 속성 | Tan-breasted Partridge | Ferruginous Partridge |
|---|---|---|
| 학명 | Arborophila rolli | Caloperdix oculeus |
| 목 | Galliformes | Galliformes |
| 과 | Phasianidae | Phasianidae |
| 보전 상태 | Least Concern | Near Threatened |
| 체장 | — | — |
| 날개 폭 | 28.1 cm (11.1 in) | 28.3 cm (11.1 in) |
| 체중 | 336.0 g (11.85 oz) | 210.5 g (7.43 oz) |
| 식성 | Forages on floor of northern Sumatran montane forests for seeds, invertebrates, and small fruits. Little-studied … | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … |
| 산란 수 | -- | 8-10 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Tan-breasted Partridge
Clear, ringing 'wii-OO' whistle heard from Sumatra's foothills; second note drawn out. Poorly known; alarm a short sharp 'kek'. Covey contact maintained by soft, quiet clucks.
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.
Geographic Range & Migration
Tan-breasted Partridge
Endemic to northern Sumatra in Aceh and North Sumatra provinces. Found in lowland and foothill forest below 1,000 m.
Ferruginous Partridge
Resident in lowland rainforest of the Thai-Malay Peninsula, Sumatra, and Borneo. Found in flat or gently sloping lowland forest.
보전 상태
Tan-breasted Partridge
Ferruginous Partridge
How to Tell Them Apart
Tan-breasted Partridge
Brown above; breast uniform tan-buff without chestnut or grey; throat whitish; flanks olive-brown streaked pale; bare reddish eye-ring; uniform tan breast is diagnostic against grey-breasted congeners.
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.
About These Birds
Tan-breasted Partridge
롤 자고새는 인도네시아 수마트라와 나이아스 섬에만 서식하는 자고새입니다. 남색 눈 주위 피부와 줄무늬 갈색 깃털이 특징이며, 수마트라의 열대 우림 아래층에서 서식합니다.
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.