Ferruginous Partridge vs Koklass Pheasant
Caloperdix oculeus comparado com Pucrasia macrolopha
Side-by-Side Comparison
| Atributo | Ferruginous Partridge | Koklass Pheasant |
|---|---|---|
| Nome científico | Caloperdix oculeus | Pucrasia macrolopha |
| Ordem | Galliformes | Galliformes |
| Família | Phasianidae | Phasianidae |
| Estado de conservação | Near Threatened | Least Concern |
| Comprimento | — | — |
| Envergadura | 28,3 cm (11.1 in) | 44,4 cm (17.5 in) |
| Peso | 210,5 g (7.43 oz) | 1153,75 g (40.70 oz) |
| Dieta | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Eats leaves, buds, berries, seeds, and invertebrates in Himalayan oak and coniferous forests. Forages on … |
| Tamanho da postura | 8-10 | 5-7 |
| 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.
Koklass Pheasant
Distinctive loud 'ko-KLAAAS' or 'kok-kok-KLAAS' call; responsible for common name. Ringing and far-carrying across Himalayan forests. Alarm is a harsh cackle; contact notes are soft 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.
Koklass Pheasant
Resident in the Himalayas and mountains of central Asia from Afghanistan east to central China at 1,700-4,000 m. Found in coniferous and mixed forest.
Estado de conservação
Ferruginous Partridge
Koklass 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.
Koklass Pheasant
Male has dark green glossy head with long pointed ear-tufts; chestnut-brown body streaked cream; white neck patch; grey tail with chestnut and black barring. Female is mottled brown streaked buff-white.
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.
Koklass Pheasant
A medium-large pheasant (~1.2 kg) of family Phasianidae, males with a long dark crest and complex chestnut, black, and white patterning. Inhabits steep hillside forests and scrub in the Himalayas and mountains of Central and East Asia at 1,800–4,000 m. Feeds on seeds, berries, roots, and invertebrates. Least Concern; widely distributed across Himalayan and Chinese mountain forests.