American Crow vs Emu
Corvus brachyrhynchos 비교 대상 Dromaius novaehollandiae
Side-by-Side Comparison
| 속성 | American Crow | Emu |
|---|---|---|
| 학명 | Corvus brachyrhynchos | Dromaius novaehollandiae |
| 목 | Passeriformes | Casuariiformes |
| 과 | Corvidae | Dromaiidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 45.0 cm (17.7 in) | 175.0 cm (68.9 in) |
| 날개 폭 | 99.0 cm (39.0 in) | 20.0 cm (7.9 in) |
| 체중 | 450.0 g (15.87 oz) | 45000.0 g (1587.33 oz) |
| 식성 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Plants, seeds, fruits, flowers, and insects. Swallows large stones and charcoal to grind food in … |
| 산란 수 | 3-7 | 5-24 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Emu
Open grasslands, savanna woodlands, scrublands, and semi-arid plains across Australia. Avoids dense forest and true desert.
Song & Call Comparison
American Crow
Classic 'caw-caw-caw' repeated in series. Family groups use distinct dialects. Also gives rattling, knocking, and a short 'cah' flight call. Highly social and vocal.
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
American Crow
North America from southern Canada through the United States to northern Mexico.
Emu
Throughout mainland Australia. Absent from Tasmania, where the Tasmanian emu was driven to extinction by 1850.
보전 상태
American Crow
Emu
How to Tell Them Apart
American Crow
All black with a slight glossy sheen. Squared-off tail and smooth throat distinguish it from the common raven.
Straight, sturdy black bill smaller than a raven's
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
American Crow
미국까마귀는 북미에서 가장 친숙하고 지능이 높은 새 중 하나이다. 연구에 따르면 도구를 사용하고, 인간 얼굴을 기억하며, 복잡한 사회 구조를 이룬다. 북미 전역의 다양한 서식지에 적응력이 뛰어나게 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.