Crested Partridge vs Hazel Grouse
Rollulus rouloul 比較対象 Tetrastes bonasia
Side-by-Side Comparison
| 属性 | Crested Partridge | Hazel Grouse |
|---|---|---|
| 学名 | Rollulus rouloul | Tetrastes bonasia |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 27.2 cm (10.7 in) | — |
| 体重 | 250.5 g (8.84 oz) | 384.0 g (13.55 oz) |
| 食性 | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … | Eats buds, catkins, berries, and seeds of deciduous shrubs and trees year-round. Winter diet dominated … |
| 一腹卵数 | 4-6 | 5-14 |
| 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.
Hazel Grouse
Very high-pitched, thin whistled 'tseeee-tsi-tsi-tsi-tseeee'; almost insect-like and easy to miss. Male and female calls differ slightly in pitch. Alarm is a sharp 'tsip'; wing drumming display rare.
Geographic Range & Migration
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Hazel Grouse
Resident across boreal forests of Europe, Russia, and Siberia east to Sakhalin and northern China. Found in mixed conifer-deciduous forest.
保全状況
Crested Partridge
Hazel Grouse
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 …
Hazel Grouse
Finely mottled grey-brown above; male has black throat bordered white; underparts white with chestnut-brown barring; tail grey with black subterminal band; small red eye-comb; female lacks black throat.
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.
Hazel Grouse
ハシバミライチョウはユーラシアの落葉広葉樹林と針葉樹林の混交林に生息しています。ハシバミの実を好んで食べることから名前がついています。