Ferruginous Partridge vs Bulwer's Pheasant
Caloperdix oculeus مقارنةً بـ Lophura bulweri
Side-by-Side Comparison
| السمة | Ferruginous Partridge | Bulwer's Pheasant |
|---|---|---|
| الاسم العلمي | Caloperdix oculeus | Lophura bulweri |
| الرتبة | Galliformes | Galliformes |
| الفصيلة | Phasianidae | Phasianidae |
| حالة الحفاظ | Near Threatened | Vulnerable |
| الطول | — | — |
| طول الجناح | 28,3 cm (11.1 in) | 49,4 cm (19.4 in) |
| الوزن | 210,5 g (7.43 oz) | 1297,5 g (45.77 oz) |
| النظام الغذائي | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Ground forager feeding on seeds, fallen fruit, invertebrates, and small animals in Bornean lowland rainforest. |
| عدد البيض في الوضع | 8-10 | 1-5 |
| 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.
Bulwer's Pheasant
Loud, crow-like 'krak-krak' calls; Bornean endemic. Alarm is an explosive cackling rattle. Males display with erect white tail fans while calling. Contact between birds is guttural clucking.
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.
Bulwer's Pheasant
Endemic to montane and lowland forest in Sarawak and Sabah, Borneo; found from lowlands to 1,200 m.
حالة الحفاظ
Ferruginous Partridge
Bulwer's 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.
Bulwer's Pheasant
Male entirely glossy blue-black; long pure white tail fans upward in display; legs red; striking cobalt-blue and red facial wattles greatly enlarged. Female warm reddish-brown with whitish shaft streaks.
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.
Bulwer's Pheasant
A large, bizarre Phasianidae pheasant (~1.3 kg) of lowland and hill forests in Borneo. Males display fleshy white facial wattles that can expand dramatically during courtship. Plumage is dark glossy blue. Diet includes seeds, fruits, and invertebrates. Vulnerable from rapid deforestation of Bornean lowlands.