Ferruginous Partridge vs Long-billed Partridge
Caloperdix oculeus so với Rhizothera longirostris
Side-by-Side Comparison
| Thuộc Tính | Ferruginous Partridge | Long-billed Partridge |
|---|---|---|
| Tên Khoa Học | Caloperdix oculeus | Rhizothera longirostris |
| Bộ | Galliformes | Galliformes |
| Họ | Phasianidae | Phasianidae |
| Tình Trạng Bảo Tồn | Near Threatened | Near Threatened |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 28,3 cm (11.1 in) | 36,9 cm (14.5 in) |
| Khối Lượng | 210,5 g (7.43 oz) | 748,5 g (26.40 oz) |
| Chế Độ Ăn | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Forages in lowland rainforest for seeds, fallen fruit, invertebrates, and small animals; probes leaf litter … |
| Số Trứng | 8-10 | 2-5 |
| 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.
Long-billed Partridge
Loud, resonant 'whurr-WHEEE' whistle from Bornean lowland forest; far-carrying and slightly mournful. Alarm is a rapid chattering cackle. Contact calls between pairs are low, guttural clucks.
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.
Long-billed Partridge
Resident of lowland and hill dipterocarp forest in peninsular Malaysia, Sumatra, and Borneo up to 900 m elevation.
Tình Trạng Bảo Tồn
Ferruginous Partridge
Long-billed Partridge
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.
Long-billed Partridge
Rich chestnut-brown upperparts with black scalloping; pale grey face and throat; buff-white underparts with dark brown streaking on flanks; distinctive elongated pale yellow bill and red orbital skin.
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.
Long-billed Partridge
A distinctive Phasianidae partridge (~749 g) of lowland and foothill rainforests in Sundaland. Named for its notably elongated bill used to probe leaf litter for invertebrates and seeds. Secretive and seldom seen; Near Threatened from deforestation across Borneo and the Malay Peninsula.