Yellow-billed Pintail vs Black Swan
Anas georgica 比較対象 Cygnus atratus
Side-by-Side Comparison
| 属性 | Yellow-billed Pintail | Black Swan |
|---|---|---|
| 学名 | Anas georgica | Cygnus atratus |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 130.0 cm (51.2 in) |
| 翼開長 | 41.1 cm (16.2 in) | 190.0 cm (74.8 in) |
| 体重 | 626.6666666666666 g (22.11 oz) | 6200.0 g (218.70 oz) |
| 食性 | Eats aquatic invertebrates, molluscs, and small fish; dives in shallow water; diet varies between freshwater … | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| 一腹卵数 | 3-12 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Yellow-billed Pintail
Freshwater and brackish lakes, rivers, marshes, and bogs from the Andes to Patagonia in South America, plus the Falkland Islands and South Georgia. Ranges from sea level to high altitudes. Partially migratory.
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Yellow-billed Pintail
Female gives a nasal, descending quacking series; male utters a short, whistled note. Calls are softer than the Northern Pintail; heard across South American lakes and pampas marshes.
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.
Geographic Range & Migration
Yellow-billed Pintail
Breeds across the northern Palearctic; winters in Europe, North Africa, the Middle East, and South Asia.
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
保全状況
Yellow-billed Pintail
Black Swan
How to Tell Them Apart
Yellow-billed Pintail
Brown plumage with pale buff feather edges creating scalloped pattern. Yellow bill with black ridge and tip. Pointed tail; long neck. Iridescent speculum with buff front border. Sexes similar. Andean …
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
About These Birds
Yellow-billed Pintail
チョウシャクシギは南米とフォークランド諸島に分布するカモです。全身が淡褐色で、長い尾羽が特徴的です。ラプラタ川流域の湿地や草原の池に生息し、水草や種子を主に食べます。繁殖期にはオスが鮮やかな声でさえずります。
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。