Black Swan vs European Goldfinch
Cygnus atratus 比較対象 Carduelis carduelis
Side-by-Side Comparison
| 属性 | Black Swan | European Goldfinch |
|---|---|---|
| 学名 | Cygnus atratus | Carduelis carduelis |
| 目 | Anseriformes | Passeriformes |
| 科 | Anatidae | Fringillidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 130.0 cm (51.2 in) | 13.0 cm (5.1 in) |
| 翼開長 | 190.0 cm (74.8 in) | 23.0 cm (9.1 in) |
| 体重 | 6200.0 g (218.70 oz) | 16.0 g (0.56 oz) |
| 食性 | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Seeds, especially thistle (Carduus) and teasel seeds, extracted with its precise tweezer-like bill. Also takes … |
| 一腹卵数 | 4-6 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
European Goldfinch
Open woodland, orchards, gardens, parks, and weedy fields with seed-bearing plants. Common at garden bird feeders.
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.
European Goldfinch
A liquid, tinkling 'swit-swit-swit' in flight and a melodic twittering song. Flocks produce a bright jingling chorus. Male song is a sweet repetitive warble incorporating the flight call.
Geographic Range & Migration
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
European Goldfinch
Europe, North Africa, and western Asia. Introduced to Australia, New Zealand, and parts of South America.
保全状況
Black Swan
European Goldfinch
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
European Goldfinch
Crimson red face with white cheeks and a black crown. Sandy-brown back with a bright yellow wing bar visible in flight. Black and white tail.
Slender, pointed, ivory-pink bill adapted for extracting seeds from thistles
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。
European Goldfinch
ルネサンス絵画に頻繁に描かれたヒワで、「チャーム」（魅力）と呼ばれる群れを形成する。