Ferruginous Partridge vs Gunnison Grouse
Caloperdix oculeus 对比 Centrocercus minimus
Side-by-Side Comparison
| 属性 | Ferruginous Partridge | Gunnison Grouse |
|---|---|---|
| 学名 | Caloperdix oculeus | Centrocercus minimus |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保护状况 | Near Threatened | Endangered |
| 体长 | — | — |
| 翼展 | 28.3 cm (11.1 in) | 57.0 cm (22.4 in) |
| 体重 | 210.5 g (7.43 oz) | 1575.0 g (55.56 oz) |
| 食性 | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Highly dependent on sagebrush for winter foliage; eats forbs and invertebrates in spring and summer. … |
| 产卵数 | 8-10 | 6-10 |
| 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.
Gunnison Grouse
Lek display similar to Sage Grouse but faster and higher-pitched: 'swish-swish-ploop-ploop'; 9-note sequence vs. 7 in Sage Grouse. Plume rattle more pronounced. Alarm is harsh cacking.
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.
Gunnison Grouse
Endemic to Gunnison Basin and adjacent areas of southwestern Colorado. Found in sagebrush habitat. Critically endangered.
保护状况
Ferruginous Partridge
Gunnison 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.
Gunnison Grouse
Male similar to Sage Grouse but smaller; black belly, white breast, spiky tail with more white barring; prominent white neck filoplumes; yellow eye-combs; yellow-green breast air sacs used in display.
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。
Gunnison Grouse
冈尼森草原松鸡，约1.6千克，濒危，分布于科罗拉多州西南部冈尼森盆地和犹他州小范围地区，不足5,000只，依赖大艾蒿。