Ferruginous Partridge vs Sabah Partridge
Caloperdix oculeus comparado con Tropicoperdix graydoni
Side-by-Side Comparison
| Atributo | Ferruginous Partridge | Sabah Partridge |
|---|---|---|
| Nombre científico | Caloperdix oculeus | Tropicoperdix graydoni |
| Orden | Galliformes | Galliformes |
| Familia | Phasianidae | Phasianidae |
| Estado de conservación | Near Threatened | Near Threatened |
| Longitud | — | — |
| Envergadura | 28,3 cm (11.1 in) | — |
| Peso | 210,5 g (7.43 oz) | — |
| Dieta | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Feeds on seeds, fruits, and invertebrates in Sabah forest; poorly known diet inferred from related … |
| Tamaño de la puesta | 8-10 | -- |
| 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.
Sabah Partridge
Whistled 'wheee-oo' call from Sabah lowland forest; similar to Chestnut-necklaced Partridge but considered distinct. Very poorly known vocally. Alarm presumably sharp 'kek'; contact clucking low.
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.
Sabah Partridge
Endemic to Sabah, Borneo (Malaysia); resident of submontane and montane forest above 900 m.
Estado de conservación
Ferruginous Partridge
Sabah Partridge
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.
Sabah Partridge
Brown upperparts with dusky vermiculations; white supercilium; buffy-orange underparts; chestnut patch on breast less pronounced than in Chestnut-necklaced Partridge; greenish-grey legs; restricted to Borneo.
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.
Sabah Partridge
A little-studied Phasianidae partridge endemic to forests of Sabah and adjacent northeastern Borneo. Formerly lumped with the Chestnut-necklaced Partridge; recently elevated to full species status. Biology poorly known; presumed to forage on seeds and invertebrates in lowland forest. Near Threatened.