Crested Partridge vs Black-billed Capercaillie
Rollulus rouloul 比較対象 Tetrao urogalloides
Side-by-Side Comparison
| 属性 | Crested Partridge | Black-billed Capercaillie |
|---|---|---|
| 学名 | Rollulus rouloul | Tetrao urogalloides |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 27.2 cm (10.7 in) | 68.2 cm (26.9 in) |
| 体重 | 250.5 g (8.84 oz) | 2957.5 g (104.32 oz) |
| 食性 | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … | -- |
| 一腹卵数 | 4-6 | 5-10 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Black-billed Capercaillie
Similar to Western Capercaillie but generally higher-pitched; ticking phase faster, grinding phase shorter. Siberian larch forest species. Alarm is a loud bark; females give soft clucking brood calls.
Geographic Range & Migration
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Black-billed Capercaillie
保全状況
Crested Partridge
Black-billed Capercaillie
How to Tell Them Apart
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 …
Black-billed Capercaillie
Male uniformly glossy blue-black with slight greenish sheen on breast; smaller white wing spots than Western Capercaillie; black bill. Female barred rufous-buff and dark brown, paler below than congener.
About These Birds
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.
Black-billed Capercaillie
カラフトライチョウはシベリアと極東アジアの針葉樹林に生息する大型のライチョウの仲間です。雄の求愛ディスプレイは特徴的です。