Ferruginous Partridge vs Green Pheasant
Caloperdix oculeus compared with Phasianus versicolor
Side-by-Side Comparison
| Attribute | Ferruginous Partridge | Green Pheasant |
|---|---|---|
| Scientific Name | Caloperdix oculeus | Phasianus versicolor |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | — | — |
| Wingspan | 28.3 cm (11.1 in) | 44.1 cm (17.4 in) |
| Weight | 210.5 g (7.43 oz) | 990.5 g (34.94 oz) |
| Diet | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Feeds on seeds, grain, berries, roots, and invertebrates; forages in farmland, grassland, and woodland edges. |
| Clutch Size | 8-10 | 6-12 |
| 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.
Green Pheasant
Crow-like 'ko-KOH' with deeper, more resonant quality than Common Pheasant; Japanese endemic calling from forest edge at dawn. Alarm is explosive cackle and wing-beating. Contact calls low 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.
Green Pheasant
Endemic to Japan; resident of farmland, scrub, and open woodland on Honshu, Shikoku, and Kyushu; national bird of Japan.
Conservation Status
Ferruginous Partridge
Green Pheasant
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.
Green Pheasant
Male with deep iridescent bottle-green body and purple-green gloss on breast and flanks; dark green tail barred black; iridescent green head with red wattle; no white neck ring. Female mottled …
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.
Green Pheasant
The national bird of Japan, this Phasianidae pheasant (~991 g) inhabits open woodland, farmland, and scrub across the Japanese archipelago. Males are richly iridescent green with purple-tinged breast. Feeds on seeds, fruits, invertebrates, and small vertebrates. Least Concern as a managed gamebird.