Black Swan vs Emu
Cygnus atratus 比較対象 Dromaius novaehollandiae
Side-by-Side Comparison
| 属性 | Black Swan | Emu |
|---|---|---|
| 学名 | Cygnus atratus | Dromaius novaehollandiae |
| 目 | Anseriformes | Casuariiformes |
| 科 | Anatidae | Dromaiidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 130.0 cm (51.2 in) | 175.0 cm (68.9 in) |
| 翼開長 | 190.0 cm (74.8 in) | 20.0 cm (7.9 in) |
| 体重 | 6200.0 g (218.70 oz) | 45000.0 g (1587.33 oz) |
| 食性 | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Plants, seeds, fruits, flowers, and insects. Swallows large stones and charcoal to grind food in … |
| 一腹卵数 | 4-6 | 5-24 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Emu
Open grasslands, savanna woodlands, scrublands, and semi-arid plains across Australia. Avoids dense forest and true desert.
Song & Call Comparison
Black Swan
Gives a musical bugling 'boo-boo-boo' in flight and softer honking on water. Less vocal than Mute Swan; produces a baying call when alarmed. Wings whistle softly in flight.
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
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Emu
Throughout mainland Australia. Absent from Tasmania, where the Tasmanian emu was driven to extinction by 1850.
保全状況
Black Swan
Emu
How to Tell Them Apart
Black Swan
Almost entirely black with white flight feathers visible in flight. Red bill with a white band near the tip. Dark red to reddish-brown iris.
Bright red bill with a pale tip and prominent white band
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
Black Swan
コクチョウはかつてすべての白鳥は白いと信じていたヨーロッパ人に不可能と考えられており、帰納的推論の失敗の有名な哲学的な例となっている。西オーストラリア州の州の鳥。コクチョウは生涯続く番いの絆を形成し、両親が共同で抱卵と雛の世話を行う。
Emu
オーストラリア固有の世界第二位の大型鳥類。1932年の「エミュー戦争」で知られる。飛べないが速く走れる。