Pacific Black Duck vs Mute Swan
Anas superciliosa ile kıyaslandığında Cygnus olor
Side-by-Side Comparison
| Özellik | Pacific Black Duck | Mute Swan |
|---|---|---|
| Bilimsel Ad | Anas superciliosa | Cygnus olor |
| Takım | Anseriformes | Anseriformes |
| Familya | Anatidae | Anatidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | 152,0 cm (59.8 in) |
| Kanat Açıklığı | 50,2 cm (19.8 in) | 235,0 cm (92.5 in) |
| Ağırlık | 1000,5 g (35.29 oz) | 11000,0 g (388.01 oz) |
| Beslenme | 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 … |
| Kuluçka Büyüklüğü | 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.
Koruma Durumu
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
A large brown dabbling duck with a distinctive bold head pattern: dark crown, buff cheeks with two dark stripes, and a green speculum. The Mallard equivalent in Australasia. Widespread and common in Australia, New Zealand, New Guinea, and Pacific islands. Very tolerant of human presence.
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.