Pacific Black Duck vs Black Swan
Anas superciliosa comparado com Cygnus atratus
Side-by-Side Comparison
| Atributo | Pacific Black Duck | Black Swan |
|---|---|---|
| Nome científico | Anas superciliosa | Cygnus atratus |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 130,0 cm (51.2 in) |
| Envergadura | 50,2 cm (19.8 in) | 190,0 cm (74.8 in) |
| Peso | 1000,5 g (35.29 oz) | 6200,0 g (218.70 oz) |
| Dieta | Dives for fish and aquatic invertebrates; serrated bill adapted for gripping prey; diet varies with … | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| Tamanho da postura | 3-15 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Pacific Black Duck
Freshwater and brackish wetlands across Australasia and the Pacific Islands, from freshwater lakes and rivers to coastal estuaries, mangroves, and irrigated agricultural areas. Highly adaptable to human-modified landscapes.
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Pacific Black Duck
Female gives a loud, emphatic quacking series; male utters a soft quip note. Common call is a loud, repeated quack; alarm is an insistent, rattling quacking burst.
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
Pacific Black Duck
Found across sub-Saharan Africa and Madagascar; locally sedentary in freshwater lakes and rivers year-round.
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Estado de conservação
Pacific Black Duck
Black Swan
How to Tell Them Apart
Pacific Black Duck
Brownish-black body with pale buff feather edges giving scaly appearance. Bold pale buff supercilium and dark eye-stripe and crown stripe on paler face. Iridescent green speculum. Gray bill; orange legs. …
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
Pacific Black Duck
O pato do Pacífico é um pato dabbling de tamanho médio amplamente distribuído na Oceânia, incluindo Austrália, Nova Zelândia, Nova Guiné e numerosas ilhas do Pacífico. Apresenta uma plumagem castanha mosqueada com uma faixa ocular escura proeminente. É um dos patos mais comuns e familiares da Austrália e Nova Zelândia. Habita uma grande variedade de habitats aquáticos, desde lagoas de zonas húmidas a estuários costeiros.
Black Swan
The black swan was once considered impossible by Europeans who believed all swans were white, making it a famous philosophical example of inductive reasoning failure. It is the state emblem of Western Australia. Black swans form lifelong pair bonds and both parents share in incubation and care of cygnets.