Gunnison Grouse vs Altai Snowcock
Centrocercus minimus 比較対象 Tetraogallus altaicus
Side-by-Side Comparison
| 属性 | Gunnison Grouse | Altai Snowcock |
|---|---|---|
| 学名 | Centrocercus minimus | Tetraogallus altaicus |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Endangered | Least Concern |
| 体長 | — | — |
| 翼開長 | 57.0 cm (22.4 in) | 56.9 cm (22.4 in) |
| 体重 | 1575.0 g (55.56 oz) | 2770.0 g (97.71 oz) |
| 食性 | Highly dependent on sagebrush for winter foliage; eats forbs and invertebrates in spring and summer. … | Feeds on alpine grasses, seeds, berries, and shoots; digs for roots and bulbs in Altai … |
| 一腹卵数 | 6-10 | 4-15 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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.
Altai Snowcock
Loud, ringing whistled 'whi-WHEEE' echoing across Altai alpine slopes; deeper than Tibetan Snowcock due to larger size. Alarm is rapid barking. Calls at dawn from rocky ridgelines.
Geographic Range & Migration
Gunnison Grouse
Endemic to Gunnison Basin and adjacent areas of southwestern Colorado. Found in sagebrush habitat. Critically endangered.
Altai Snowcock
Resident of alpine rocky slopes and grassy hillsides in the Altai and Sayan mountains of Russia, Kazakhstan, and western Mongolia, at 2,000–4,000 m.
保全状況
Gunnison Grouse
Altai Snowcock
How to Tell Them Apart
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.
Altai Snowcock
Largest snowcock; grey-brown upperparts with buff streaks; white underparts with grey breast; rufous necklace streaks on lower neck; white outer tail in flight; whitish face with dark ear patch. Sexes …
About These Birds
Gunnison Grouse
体重約1.6kgの絶滅危惧II類のグラウス。コロラド南西部・ユタの小地域のガニソン盆地に5,000羽未満が生息し、セージブラッシュに依存する。
Altai Snowcock
アルタイセッケイはアルタイ山脈の高山地帯に生息する大型のキジ科の鳥です。険しい岩場の斜面を好み、植物の種子や葉を食べます。