Crested Duck vs Mute Swan
Lophonetta specularioides 对比 Cygnus olor
Side-by-Side Comparison
| 属性 | Crested Duck | Mute Swan |
|---|---|---|
| 学名 | Lophonetta specularioides | Cygnus olor |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 152.0 cm (59.8 in) |
| 翼展 | 53.8 cm (21.2 in) | 235.0 cm (92.5 in) |
| 体重 | 941.3833333333333 g (33.21 oz) | 11000.0 g (388.01 oz) |
| 食性 | Feeds on seeds and aquatic invertebrates; dabbles in ponds and marshes; diet more invertebrate-heavy in … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 产卵数 | 5-8 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Crested Duck
Fast-flowing Andean rivers, lakes, and puna wetlands from sea level to 4,500 m in Peru, Bolivia, Chile, Argentina, and the Falkland Islands. Occupies both coastal and high-altitude wetland habitats.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Crested Duck
Produces a harsh, rattling call and loud hissing alarm notes. Both sexes vocalize with grating, nasal croaking sounds echoing across Andean rocky shores and rivers.
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
Crested Duck
Breeds across Eurasia; winters in sub-Saharan Africa. One of the most abundant Palearctic ducks on the African wintering grounds.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
保护状况
Crested Duck
Mute Swan
How to Tell Them Apart
Crested Duck
Brown body with dark streaking; long pointed crest on hindcrown. Face and throat pale with dark eye patch. Iridescent purple-bronze speculum bordered white. Bill and legs grayish. Sexes similar. Andean …
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
Crested Duck
眼镜鸭（冠鸭）是南美洲特有的一种善于游泳的鸭子，分布于安第斯山脉和巴塔哥尼亚地区。因其眼周具特征性的黑色斑纹，形似眼镜，故得此名。具一簇下垂的浅色冠羽，体羽以棕褐色为主。栖息于高山湖泊、河流和海滨，以水生植物和无脊椎动物为食。
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.