Grey Peacock-Pheasant vs Crested Partridge
Polyplectron bicalcaratum compared with Rollulus rouloul
Side-by-Side Comparison
| Attribute | Grey Peacock-Pheasant | Crested Partridge |
|---|---|---|
| Scientific Name | Polyplectron bicalcaratum | Rollulus rouloul |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 40.2 cm (15.8 in) | 27.2 cm (10.7 in) |
| Weight | 479.75 g (16.92 oz) | 250.5 g (8.84 oz) |
| Diet | Omnivorous forest floor forager; takes seeds, fruits, invertebrates, and small vertebrates in mainland SE Asia. | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| Clutch Size | 2-5 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Grey Peacock-Pheasant
Loud, penetrating 'kow-WEE' whistle; most vocal of peacock-pheasants, ringing through SE Asian forest. Male calls while displaying ocellated tail. Alarm is sharp 'kak'. Heard at dawn and dusk.
Crested Partridge
High-pitched, thin whistled 'seee' repeated persistently; metallic and insect-like. Males call from forest floor, rarely seen. Alarm is an explosive low grunt followed by rapid wing beats.
Geographic Range & Migration
Grey Peacock-Pheasant
Resident of hill and montane forest from northeastern India and Bangladesh east through Myanmar to southern China and mainland Southeast Asia.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Conservation Status
Grey Peacock-Pheasant
Crested Partridge
How to Tell Them Apart
Grey Peacock-Pheasant
Grey-brown with buff-white shaft streaks and dark vermiculations; large oval iridescent green and purple ocelli on wing coverts and tail; white-scaled face; yellow orbital skin. Female similar but smaller ocelli.
Crested Partridge
Male is dark glossy green-black with vivid red-crimson erectile crest; red orbital skin; chestnut wings. Female is entirely bright emerald green with brown wings, red legs, and grey head; among …
About These Birds
Grey Peacock-Pheasant
The most widespread Polyplectron peacock-pheasant (~480 g), inhabiting forest understorey from northeastern India through mainland Southeast Asia. Males are grey-brown peppered with violet-green ocelli. Forages on the ground for seeds, invertebrates, and small reptiles. Tolerates secondary forest; Least Concern.
Crested Partridge
A small partridge (~250 g) of family Phasianidae, males with vivid crimson crest and iridescent green plumage. Found in lowland tropical rainforests of Southeast Asia including Thailand, Malaysia, Sumatra, and Borneo. Forages on the forest floor for fallen seeds, fruits, and invertebrates. Vulnerable; dependent on primary lowland forest, heavily impacted by deforestation and palm oil expansion.