Bornean Partridge vs Ferruginous Partridge
Arborophila hyperythra comparado com Caloperdix oculeus
Side-by-Side Comparison
| Atributo | Bornean Partridge | Ferruginous Partridge |
|---|---|---|
| Nome científico | Arborophila hyperythra | Caloperdix oculeus |
| Ordem | Galliformes | Galliformes |
| Família | Phasianidae | Phasianidae |
| Estado de conservação | Least Concern | Near Threatened |
| Comprimento | — | — |
| Envergadura | 28,2 cm (11.1 in) | 28,3 cm (11.1 in) |
| Peso | 270,0 g (9.52 oz) | 210,5 g (7.43 oz) |
| Dieta | Forages on Bornean montane forest floor for seeds, invertebrates, and small fruits. Scratches leaf litter … | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … |
| Tamanho da postura | -- | 8-10 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Bornean Partridge
Pure, rising 'wheeet' whistle followed by softer 'oo'; Bornean endemic heard in montane cloud forest. Alarm is a sharp rapid clatter. Pairs occasionally synchronize calls at dawn.
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
Bornean Partridge
Endemic to Borneo at 500-1,700 m elevation. Found in foothill and montane rainforest of Sabah, Sarawak, and Kalimantan.
Ferruginous Partridge
Resident in lowland rainforest of the Thai-Malay Peninsula, Sumatra, and Borneo. Found in flat or gently sloping lowland forest.
Estado de conservação
Bornean Partridge
Ferruginous Partridge
How to Tell Them Apart
Bornean Partridge
Brown above; entire underparts rich rufous-orange from throat to vent; bare red eye-ring; back shows dark-centred feathers with buff fringes; deeply rufous underparts cover whole belly and flanks.
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
Bornean Partridge
A medium-sized partridge (~270 g) of family Phasianidae, with rufous-orange breast and barred brown upperparts. Endemic to Borneo, inhabiting primary lowland and montane forests from sea level to 1,800 m elevation. Forages on the forest floor for seeds, berries, and invertebrates. Least Concern; broadly distributed across Borneo's forests, though logging and land conversion pose growing threats.
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.