Siberian Grouse vs Altai Snowcock
Falcipennis falcipennis 比較対象 Tetraogallus altaicus
Side-by-Side Comparison
| 属性 | Siberian Grouse | Altai Snowcock |
|---|---|---|
| 学名 | Falcipennis falcipennis | Tetraogallus altaicus |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 35.8 cm (14.1 in) | 56.9 cm (22.4 in) |
| 体重 | 676.25 g (23.85 oz) | 2770.0 g (97.71 oz) |
| 食性 | Feeds heavily on conifer needles, especially larch and spruce; supplements with berries, buds, and insects … | Feeds on alpine grasses, seeds, berries, and shoots; digs for roots and bulbs in Altai … |
| 一腹卵数 | 6-12 | 4-15 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Siberian Grouse
Males display with soft, low 'bup-bup-bup' drumming and fanned tail vibration; rarely vocal. Alarm is a quiet 'tsip'. Contact calls are soft clucks. Very silent overall; reliant on visual displays.
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
Siberian Grouse
Resident of boreal coniferous forests in eastern Russia, from the Yenisei River east to the Sea of Okhotsk and Sakhalin Island.
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
Siberian Grouse
Altai Snowcock
How to Tell Them Apart
Siberian Grouse
Male sooty-black overall with white-spotted breast and flanks; bold white terminal band on dark tail; red superciliary comb. Female cryptically barred rufous-brown and black throughout.
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
Siberian Grouse
ロシア極東のタイガに生息するライチョウで、体重約676g。準絶滅危惧種に指定されている。
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。