Long-billed Partridge vs Crested Partridge
Rhizothera longirostris so với Rollulus rouloul
Side-by-Side Comparison
| Thuộc Tính | Long-billed Partridge | Crested Partridge |
|---|---|---|
| Tên Khoa Học | Rhizothera longirostris | Rollulus rouloul |
| Bộ | Galliformes | Galliformes |
| Họ | Phasianidae | Phasianidae |
| Tình Trạng Bảo Tồn | Near Threatened | Vulnerable |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 36,9 cm (14.5 in) | 27,2 cm (10.7 in) |
| Khối Lượng | 748,5 g (26.40 oz) | 250,5 g (8.84 oz) |
| Chế Độ Ăn | Forages in lowland rainforest for seeds, fallen fruit, invertebrates, and small animals; probes leaf litter … | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| Số Trứng | 2-5 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Long-billed Partridge
Loud, resonant 'whurr-WHEEE' whistle from Bornean lowland forest; far-carrying and slightly mournful. Alarm is a rapid chattering cackle. Contact calls between pairs are low, guttural clucks.
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
Long-billed Partridge
Resident of lowland and hill dipterocarp forest in peninsular Malaysia, Sumatra, and Borneo up to 900 m elevation.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Tình Trạng Bảo Tồn
Long-billed Partridge
Crested Partridge
How to Tell Them Apart
Long-billed Partridge
Rich chestnut-brown upperparts with black scalloping; pale grey face and throat; buff-white underparts with dark brown streaking on flanks; distinctive elongated pale yellow bill and red orbital skin.
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
Long-billed Partridge
A distinctive Phasianidae partridge (~749 g) of lowland and foothill rainforests in Sundaland. Named for its notably elongated bill used to probe leaf litter for invertebrates and seeds. Secretive and seldom seen; Near Threatened from deforestation across Borneo and the Malay Peninsula.
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.