Pacific Black Duck vs Mute Swan
Anas superciliosa comparado com Cygnus olor
Side-by-Side Comparison
| Atributo | Pacific Black Duck | Mute Swan |
|---|---|---|
| Nome científico | Anas superciliosa | Cygnus olor |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 152,0 cm (59.8 in) |
| Envergadura | 50,2 cm (19.8 in) | 235,0 cm (92.5 in) |
| Peso | 1000,5 g (35.29 oz) | 11000,0 g (388.01 oz) |
| Dieta | Dives for fish and aquatic invertebrates; serrated bill adapted for gripping prey; diet varies with … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Tamanho da postura | 3-15 | 5-7 |
| 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.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
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.
Mute Swan
Despite its name, not truly mute: gives hissing snorts and low grunting when threatened. Wings produce a loud rhythmic whistling throbbing sound in flight.
Geographic Range & Migration
Pacific Black Duck
Found across sub-Saharan Africa and Madagascar; locally sedentary in freshwater lakes and rivers year-round.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Estado de conservação
Pacific Black Duck
Mute 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. …
Mute Swan
All-white plumage in adults. Cygnets are grey-brown, gradually whitening over the first year. Graceful S-curved neck posture is distinctive.
Orange bill with a prominent black knob at the base, larger in males
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.
Mute Swan
The mute swan is one of the heaviest flying birds, with males weighing up to 14 kg. Despite its name, it is not truly mute, producing hissing, grunting, and snorting sounds. Mute swans form lifelong pair bonds and their aggressive defense of nesting territory is well known.