Dusky Grouse vs Crested Partridge
Dendragapus obscurus 비교 대상 Rollulus rouloul
Side-by-Side Comparison
| 속성 | Dusky Grouse | Crested Partridge |
|---|---|---|
| 학명 | Dendragapus obscurus | Rollulus rouloul |
| 목 | Galliformes | Galliformes |
| 과 | Phasianidae | Phasianidae |
| 보전 상태 | Least Concern | Vulnerable |
| 체장 | — | — |
| 날개 폭 | 45.3 cm (17.8 in) | 27.2 cm (10.7 in) |
| 체중 | 1118.0 g (39.44 oz) | 250.5 g (8.84 oz) |
| 식성 | 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 … |
| 산란 수 | 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.
보전 상태
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
약 1.1kg의 Phasianidae 과 대형 뇌조로 수컷은 노란-주황색 눈 볏과 부풀릴 수 있는 보라색 목 주머니를 가진 어두운 회색 깃털. 브리티시컬럼비아에서 뉴멕시코까지 로키 산맥의 산지 침엽수림에 서식. 겨울에는 침엽수 잎, 여름에는 장과류와 곤충을 먹는다. 수직 이동을 한다. 최소 관심; 북아메리카 서부 산지림에서 흔하다.
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.