Ferruginous Partridge vs Blue Eared-pheasant
Caloperdix oculeus مقارنةً بـ Crossoptilon auritum
Side-by-Side Comparison
| السمة | Ferruginous Partridge | Blue Eared-pheasant |
|---|---|---|
| الاسم العلمي | Caloperdix oculeus | Crossoptilon auritum |
| الرتبة | Galliformes | Galliformes |
| الفصيلة | Phasianidae | Phasianidae |
| حالة الحفاظ | Near Threatened | Least Concern |
| الطول | — | — |
| طول الجناح | 28,3 cm (11.1 in) | 59,1 cm (23.3 in) |
| الوزن | 210,5 g (7.43 oz) | 1785,0 g (62.96 oz) |
| النظام الغذائي | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Omnivorous; digs for tubers, roots, and invertebrates; eats seeds, berries, and shoots in montane forests … |
| عدد البيض في الوضع | 8-10 | 6-12 |
| 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.
Blue Eared-pheasant
Loud, resonant 'gaa-gaa-GAAK' calls with slight bugling quality; Sichuan-Qinghai mountain species. Flock communication noisy. Alarm is loud explosive barking; white ear tufts raised during calling.
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.
Blue Eared-pheasant
Resident of forest, scrub, and alpine meadow in central and eastern China (Qinghai, Gansu, Sichuan, Shaanxi), at 2,000–4,000 m.
حالة الحفاظ
Ferruginous Partridge
Blue Eared-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.
Blue Eared-pheasant
Predominantly blue-grey with darker blue primaries; black crown; long white ear tufts; graduated tail with white bases and dark-tipped glossy black outer feathers; red facial skin. 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.
Blue Eared-pheasant
A large Phasianidae pheasant (~1.79 kg) of high coniferous and mixed forests in central China. Slate-blue plumage contrasts with crimson legs and long, drooping white ear tufts. Gregarious; flocks excavate roots and bulbs. Adapts to high elevations up to 4,000 m in summer. Least Concern.