Sumatran Partridge vs Ferruginous Partridge
Arborophila sumatrana comparado con Caloperdix oculeus
Side-by-Side Comparison
| Atributo | Sumatran Partridge | Ferruginous Partridge |
|---|---|---|
| Nombre científico | Arborophila sumatrana | Caloperdix oculeus |
| Orden | Galliformes | Galliformes |
| Familia | Phasianidae | Phasianidae |
| Estado de conservación | Least Concern | Near Threatened |
| Longitud | — | — |
| Envergadura | 28,2 cm (11.1 in) | 28,3 cm (11.1 in) |
| Peso | 336,0 g (11.85 oz) | 210,5 g (7.43 oz) |
| Dieta | Eats seeds, invertebrates, and small fruits on floor of Sumatran montane forests. Scratches leaf litter … | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … |
| Tamaño de la puesta | -- | 8-10 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sumatran Partridge
Resonant, slow 'phoo-WHEEE' whistle; Sumatran endemic with soft, slightly mournful tone. Calling bird remains concealed. Alarm note a quick repeated 'kik'; flock contact involves quiet murmuring.
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
Sumatran Partridge
Endemic to southern Sumatra in Lampung and South Sumatra provinces at 200-1,200 m. Found in lowland and hill forest.
Ferruginous Partridge
Resident in lowland rainforest of the Thai-Malay Peninsula, Sumatra, and Borneo. Found in flat or gently sloping lowland forest.
Estado de conservación
Sumatran Partridge
Ferruginous Partridge
How to Tell Them Apart
Sumatran Partridge
Dark brown above with buff streaking; throat buff-white; breast grey-brown; flanks grey with white streaks; bare red eye-ring; Sumatran endemic with no bold colour features; cryptic forest floor colouring.
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
Sumatran Partridge
A medium-sized partridge (~335 g) of family Phasianidae, with brownish plumage and scaly underparts. Endemic to Sumatra, inhabiting primary and secondary highland forests at 600–2,000 m elevation. Forages on the forest floor for seeds, berries, and invertebrates. Least Concern; Sumatra's mountain forests retain substantial cover in protected areas, supporting stable partridge populations.
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.