Ferruginous Partridge vs Caspian Snowcock
Caloperdix oculeus comparé à Tetraogallus caspius
Side-by-Side Comparison
| Attribut | Ferruginous Partridge | Caspian Snowcock |
|---|---|---|
| Nom scientifique | Caloperdix oculeus | Tetraogallus caspius |
| Ordre | Galliformes | Galliformes |
| Famille | Phasianidae | Phasianidae |
| Statut de conservation | Near Threatened | Least Concern |
| Longueur | — | — |
| Envergure | 28,3 cm (11.1 in) | 56,7 cm (22.3 in) |
| Poids | 210,5 g (7.43 oz) | 2332,0 g (82.26 oz) |
| Régime alimentaire | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Eats alpine grasses, seeds, shoots, and berries; digs for roots and bulbs on rocky Caspian-region … |
| Taille de la couvée | 8-10 | 5-9 |
| 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.
Caspian Snowcock
Loud, whistled 'wheee-WHI-oo' series carrying across Iranian alpine plateaus; rich, melodic quality. Large size gives call fuller resonance. Alarm is rapid loud barking. Flocks call together at dawn.
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.
Caspian Snowcock
Resident of rocky alpine and subalpine terrain from the Alborz Mountains (Iran) through the Zagros and Armenia to eastern Turkey, at 2,000–4,000 m.
Statut de conservation
Ferruginous Partridge
Caspian Snowcock
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.
Caspian Snowcock
Grey-brown above with pale buff streaking; white underparts with dark flank streaks and rufous lateral neck patches; white outer tail feathers; whitish face; orange-red bill and legs. Closely resembles Himalayan …
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.
Caspian Snowcock
A large Phasianidae snowcock (~2.33 kg) of high rocky mountains in Turkey, Iran, and the Zagros and Elburz ranges. Grey-brown with chestnut streaking; whiter below. Inhabits steep scree and alpine meadow above 2,500 m. Feeds on grasses, roots, and invertebrates. Strong flier when alarmed. Least Concern.