Hainan Partridge vs Ferruginous Partridge
Arborophila ardens compared with Caloperdix oculeus
Side-by-Side Comparison
| Attribute | Hainan Partridge | Ferruginous Partridge |
|---|---|---|
| Scientific Name | Arborophila ardens | Caloperdix oculeus |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Vulnerable | Near Threatened |
| Length | — | — |
| Wingspan | 26.1 cm (10.3 in) | 28.3 cm (11.1 in) |
| Weight | 243.5 g (8.59 oz) | 210.5 g (7.43 oz) |
| Diet | Eats seeds, invertebrates, and small fruits on floor of Hainan Island forests. Endangered; scratches leaf … | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … |
| Clutch Size | 2-4 | 8-10 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Hainan Partridge
Penetrating, flute-like 'phwee-PHOO' whistle ringing through Hainan rainforest; loud relative to body size. Alarm is rapid explosive clucking; rarely heard outside breeding season.
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
Hainan Partridge
Endemic to Hainan Island, China. Found in dense montane forest at 300-1,800 m. Vulnerable.
Ferruginous Partridge
Resident in lowland rainforest of the Thai-Malay Peninsula, Sumatra, and Borneo. Found in flat or gently sloping lowland forest.
Conservation Status
Hainan Partridge
Ferruginous Partridge
How to Tell Them Apart
Hainan Partridge
Brown above; white-spotted black throat and breast with chestnut streaks; flanks grey streaked white; bare red eye-ring; underparts boldly patterned with chestnut and white spotting on black.
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
Hainan Partridge
A small partridge (~245 g) of family Phasianidae, with black-and-white facial markings and rufous breast. Endemic to Hainan Island, China. Inhabits tropical and subtropical montane forests, increasingly confined to higher elevations due to lowland deforestation. Forages on the forest floor for seeds and invertebrates. Vulnerable; very restricted island range with severe habitat loss over past decades.
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.