Ferruginous Partridge vs Spruce Grouse
Caloperdix oculeus 对比 Canachites canadensis
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Spruce Grouse |
|---|---|---|
| 学名 | Caloperdix oculeus | Canachites canadensis |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 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 … |
| 产卵数 | 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.
保护状况
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
锈红山鹑，约210克，锈红色有黑白斑点，分布于马来西亚、苏门答腊和婆罗洲，近危。
Spruce Grouse
云杉雷鸟，约469克，分布于北美北方针叶林，专食云杉和松树针叶。