Ferruginous Partridge vs Caucasian Snowcock
Caloperdix oculeus comparé à Tetraogallus caucasicus
Side-by-Side Comparison
| Attribut | Ferruginous Partridge | Caucasian Snowcock |
|---|---|---|
| Nom scientifique | Caloperdix oculeus | Tetraogallus caucasicus |
| Ordre | Galliformes | Galliformes |
| Famille | Phasianidae | Phasianidae |
| Statut de conservation | Near Threatened | Least Concern |
| Longueur | — | — |
| Envergure | 28,3 cm (11.1 in) | 51,4 cm (20.2 in) |
| Poids | 210,5 g (7.43 oz) | 2030,0 g (71.61 oz) |
| Régime alimentaire | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Grazes on alpine herbs, seeds, and grass shoots; also eats berries and invertebrates in Caucasus … |
| Taille de la couvée | 8-10 | 5-8 |
| 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.
Caucasian Snowcock
Melodious, slightly liquid whistling 'wheee-oo-wheee' from Caucasus alpine rocky terrain; ringing and far-carrying. Flocks coordinate calls across slopes. Alarm is a rapid staccato barking 'kak-kak'.
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.
Caucasian Snowcock
Endemic to the Caucasus Mountains; resident of rocky alpine slopes, subalpine meadow, and scree above the treeline, at 2,500–4,000 m.
Statut de conservation
Ferruginous Partridge
Caucasian 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.
Caucasian Snowcock
Grey-brown above with buff shaft streaks; white breast and belly; grey breast band; rufous-brown flank streaks; white outer rectrices; face pattern of white cheek with dark ear patch. Sexes alike.
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.
Caucasian Snowcock
A large Phasianidae snowcock (~2.03 kg) endemic to the alpine zones of the Greater and Lesser Caucasus above treeline. White belly and grey back; reddish-orange lateral stripes. Forages on alpine plants, seeds, and invertebrates. Forms small winter flocks that descend slightly in heavy snow. Least Concern.