Chestnut-bellied Partridge vs Altai Snowcock
Arborophila javanica مقارنةً بـ Tetraogallus altaicus
Side-by-Side Comparison
| السمة | Chestnut-bellied Partridge | Altai Snowcock |
|---|---|---|
| الاسم العلمي | Arborophila javanica | Tetraogallus altaicus |
| الرتبة | Galliformes | Galliformes |
| الفصيلة | Phasianidae | Phasianidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 28,0 cm (11.0 in) | 56,9 cm (22.4 in) |
| الوزن | 271,5 g (9.58 oz) | 2770,0 g (97.71 oz) |
| النظام الغذائي | Forages on Javan and Balinese montane forest floor for seeds, invertebrates, and small fruits. Scratches … | Feeds on alpine grasses, seeds, berries, and shoots; digs for roots and bulbs in Altai … |
| عدد البيض في الوضع | 4 | 4-15 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chestnut-bellied Partridge
Penetrating, flute-like 'wee-WU' whistle in Javan mountain forest; male calls at dawn from understorey. Alarm is rapid staccato 'kek-kek'. Pairs duet with slight overlapping of notes.
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
Chestnut-bellied Partridge
Endemic to Java and Bali at 300-2,500 m. Found in dense montane forest and forest edges on volcanic mountains.
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.
حالة الحفاظ
Chestnut-bellied Partridge
Altai Snowcock
How to Tell Them Apart
Chestnut-bellied Partridge
Brown above; throat white bordered black; breast grey; belly and flanks rich chestnut contrasting with grey breast; bare red eye-ring; chestnut belly contrasting with pale breast is the key marking.
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
Chestnut-bellied Partridge
A medium-sized partridge (~270 g) of family Phasianidae, with a rich chestnut belly and boldly patterned head. Endemic to the montane forests of Java at 800–3,000 m elevation. Inhabits primary and secondary highland forest. Forages on the forest floor for seeds, berries, and invertebrates. Least Concern; well represented in Java's mountain national parks despite the island's high human population density.
Altai Snowcock
The largest snowcock (~2.77 kg), family Phasianidae, of alpine scree and subalpine meadows in the Altai and Tian Shan ranges of Central Asia. Heavily built, grey and white with rusty-brown markings. Feeds on roots, bulbs, and alpine plants. Forms small flocks outside breeding season. Least Concern.