Ferruginous Partridge vs Swamp Francolin
Caloperdix oculeus compared with Ortygornis gularis
Side-by-Side Comparison
| Attribute | Ferruginous Partridge | Swamp Francolin |
|---|---|---|
| Scientific Name | Caloperdix oculeus | Ortygornis gularis |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Near Threatened | Near Threatened |
| Length | — | — |
| Wingspan | 28.3 cm (11.1 in) | — |
| Weight | 210.5 g (7.43 oz) | 510.0 g (17.99 oz) |
| Diet | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Eats seeds, roots, invertebrates, and small animals in Indian swamp grass and reed beds. |
| Clutch Size | 8-10 | 3-7 |
| 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.
Swamp Francolin
Harsh, grating 'kurr-KURR-kurr' calls from tall grass and reed beds; South Asian species. Alarm is explosive rapid cackle from dense cover. Contact calls between pair members are lower guttural notes.
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.
Swamp Francolin
Resident of tall wet grassland and reed beds along rivers and wetlands in the Terai of Nepal, India (Assam), and Bangladesh.
Conservation Status
Ferruginous Partridge
Swamp Francolin
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.
Swamp Francolin
Dark rufous-brown above with black and buff streaking; white throat; rufous-buff below with white shaft streaks and dark brown lateral flank stripes; red bill; legs red in male. Larger than …
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.
Swamp Francolin
A large Phasianidae francolin (~510 g) inhabiting tall grass, reedbeds, and swampy margins of rivers and wetlands in the Gangetic Plains and Nepal Terai. Boldly streaked rufous-brown. Dependent on intact floodplain grass habitat that is rapidly degrading. Near Threatened from wetland drainage and grassland conversion.