Orange-necked Partridge vs Ferruginous Partridge
Arborophila davidi compared with Caloperdix oculeus
Side-by-Side Comparison
| Attribute | Orange-necked Partridge | Ferruginous Partridge |
|---|---|---|
| Scientific Name | Arborophila davidi | Caloperdix oculeus |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Near Threatened | Near Threatened |
| Length | — | — |
| Wingspan | 26.0 cm (10.2 in) | 28.3 cm (11.1 in) |
| Weight | 241.0 g (8.50 oz) | 210.5 g (7.43 oz) |
| Diet | Eats seeds, invertebrates, and small fruits on floor of Vietnamese forests. Critically endangered; diet poorly … | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … |
| Clutch Size | -- | 8-10 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Orange-necked Partridge
Slightly nasal 'wheee-yoo' whistle with plaintive quality; endemic to S Vietnam. Calls infrequently. Contact notes are quiet, gentle clucks; alarm is a quick explosive 'pik' note.
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
Orange-necked Partridge
Endemic to southern Vietnam and Cambodia. Found in lowland evergreen forest and secondary growth. Poorly known.
Ferruginous Partridge
Resident in lowland rainforest of the Thai-Malay Peninsula, Sumatra, and Borneo. Found in flat or gently sloping lowland forest.
Conservation Status
Orange-necked Partridge
Ferruginous Partridge
How to Tell Them Apart
Orange-necked Partridge
Brown above; neck sides and throat vivid orange, contrasting with grey breast; flanks grey streaked white; bare reddish eye-ring; orange neck patch is unmistakable; one of the most distinctive Arborophila …
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
Orange-necked Partridge
A small partridge (~240 g) of family Phasianidae, with a vivid orange neck and throat patch. Endemic to a small area of evergreen forest in southeastern Vietnam and possibly adjacent Cambodia. Inhabits lowland and foothill forest. Forages on the forest floor for seeds and invertebrates. Near Threatened; extremely restricted range with significant deforestation and active hunting pressure in southeastern Vietnam.
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.