Ferruginous Partridge vs Spruce Grouse
Caloperdix oculeus 比較対象 Canachites canadensis
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Spruce Grouse |
|---|---|---|
| 学名 | Caloperdix oculeus | Canachites canadensis |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 28.3 cm (11.1 in) | — |
| 体重 | 210.5 g (7.43 oz) | 468.75 g (16.53 oz) |
| 食性 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Highly specialized on spruce and fir needles year-round; eats berries, fungi, and invertebrates in summer … |
| 一腹卵数 | 8-10 | 4-7 |
| 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.
Spruce Grouse
Males produce low-frequency wing drumming in short bursts during display; tail fans on ground. Very quiet vocally; alarm a soft 'tsik'. Known as 'fool hen' for fearlessness rather than vocal …
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.
Spruce Grouse
Resident of spruce and coniferous forests across boreal North America, from Alaska east to Newfoundland and south through the Rockies.
保全状況
Ferruginous Partridge
Spruce Grouse
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.
Spruce Grouse
Male dark charcoal-grey with black throat and breast bordered by white spots; flanks barred white; red superciliary comb. Female intricately barred tawny-brown, black, and white with buffy undertones.
About These Birds
Ferruginous Partridge
体重約210gの錆赤色・黒白の斑点を持つヤマウズラ。マレーシア・スマトラ・ボルネオに生息する準絶滅危惧種。
Spruce Grouse
体重約469gの北米の北方針葉樹林に生息するライチョウ。トウヒやマツの葉を主食とする。