Dusky Grouse vs Crested Partridge
Dendragapus obscurus से तुलना Rollulus rouloul
Side-by-Side Comparison
| विशेषता | Dusky Grouse | Crested Partridge |
|---|---|---|
| वैज्ञानिक नाम | Dendragapus obscurus | Rollulus rouloul |
| गण | Galliformes | Galliformes |
| कुल | Phasianidae | Phasianidae |
| संरक्षण स्थिति | Least Concern | Vulnerable |
| लंबाई | — | — |
| पंखों का फैलाव | 45.3 cm (17.8 in) | 27.2 cm (10.7 in) |
| वजन | 1118.0 g (39.44 oz) | 250.5 g (8.84 oz) |
| आहार | Eats conifer needles, especially fir and pine, in winter; berries, leaves, and invertebrates in summer. … | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| अंडों की संख्या | 4-10 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Dusky Grouse
Low, deep hooting 'hoo-hoo-hoo-hoo-hoo' by males from conifer branches; ventriloquial and owl-like. Alarm is a sharp series of 'kuk-kuk' clucks. Female produces soft clucking contact notes.
Crested Partridge
High-pitched, thin whistled 'seee' repeated persistently; metallic and insect-like. Males call from forest floor, rarely seen. Alarm is an explosive low grunt followed by rapid wing beats.
Geographic Range & Migration
Dusky Grouse
Resident in the Rocky Mountains and coastal ranges of western North America from British Columbia south to New Mexico at 1,000-3,500 m.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
संरक्षण स्थिति
Dusky Grouse
Crested Partridge
How to Tell Them Apart
Dusky Grouse
Male dark greyish-brown overall; pale grey tail with broad grey terminal band; yellow-orange eye-comb; bare yellow-purple neck air sacs visible in display. Female mottled brown and buff with darker barring.
Crested Partridge
Male is dark glossy green-black with vivid red-crimson erectile crest; red orbital skin; chestnut wings. Female is entirely bright emerald green with brown wings, red legs, and grey head; among …
About These Birds
Dusky Grouse
A large grouse (~1.1 kg) of family Phasianidae, males dark grey with yellow-orange eyecomb and inflatable violet neck sacs. Inhabits montane coniferous forests in the Rocky Mountains from British Columbia to New Mexico. Feeds on conifer needles in winter, berries and insects in summer. Exhibits elevational migration. Least Concern; common in western North American mountain forests.
Crested Partridge
A small partridge (~250 g) of family Phasianidae, males with vivid crimson crest and iridescent green plumage. Found in lowland tropical rainforests of Southeast Asia including Thailand, Malaysia, Sumatra, and Borneo. Forages on the forest floor for fallen seeds, fruits, and invertebrates. Vulnerable; dependent on primary lowland forest, heavily impacted by deforestation and palm oil expansion.