Common Raven vs Emu
Corvus corax 비교 대상 Dromaius novaehollandiae
Side-by-Side Comparison
| 속성 | Common Raven | Emu |
|---|---|---|
| 학명 | Corvus corax | Dromaius novaehollandiae |
| 목 | Passeriformes | Casuariiformes |
| 과 | Corvidae | Dromaiidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 63.0 cm (24.8 in) | 175.0 cm (68.9 in) |
| 날개 폭 | 130.0 cm (51.2 in) | 20.0 cm (7.9 in) |
| 체중 | 1200.0 g (42.33 oz) | 45000.0 g (1587.33 oz) |
| 식성 | Omnivorous and opportunistic — carrion, small animals, insects, eggs, grain, fruit, and human refuse. Among … | Plants, seeds, fruits, flowers, and insects. Swallows large stones and charcoal to grind food in … |
| 산란 수 | 1-8 | 5-24 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Common Raven
Diverse habitats from Arctic tundra to deserts, mountains, forests, and coastlines. Avoids dense urban areas but thrives near human activity.
Emu
Open grasslands, savanna woodlands, scrublands, and semi-arid plains across Australia. Avoids dense forest and true desert.
Song & Call Comparison
Common Raven
Highly varied: deep resonant 'kraa-kraa-kraa', hollow 'tok-tok', liquid 'klonk', and wing-whooshing. Among the most intelligent corvid callers; uses calls contextually in groups.
Emu
Deep, resonant booming grunt 'e-moo', often repeated 3 times. Females give a deep drumming call produced by an inflatable throat pouch. Generally low-pitched and far-carrying.
Geographic Range & Migration
Common Raven
Holarctic distribution across North America, Europe, Asia, and North Africa. The most widely distributed corvid.
Emu
Throughout mainland Australia. Absent from Tasmania, where the Tasmanian emu was driven to extinction by 1850.
보전 상태
Common Raven
Emu
How to Tell Them Apart
Common Raven
All black with a glossy purplish-blue iridescent sheen. Shaggy throat hackles, long wedge-shaped tail, and large robust build distinguish it from crows.
Large, powerful, curved black bill
Emu
Shaggy grey-brown plumage with double-shafted feathers giving a loose, hair-like appearance. Bare blue skin on the face and neck.
Broad, flat, dark grey bill
About These Birds
Common Raven
큰까마귀는 가장 지능적인 조류 중 하나로, 도구 사용, 미래 계획, 복잡한 사회적 행동을 보인다. 전반적으로 광택 있는 검은 깃털을 가지며 북반구 전역의 다양한 서식지에 서식한다.
Emu
에뮤는 두 번째로 키가 큰 현존 조류이자 호주 최대 조류이다. 날지 못하지만 시속 50km로 달릴 수 있으며 강한 다리로 포식자를 방어한다. 수컷이 알을 품고 새끼를 기른다.