Surf Scoter vs Mute Swan
Melanitta perspicillata 对比 Cygnus olor
Side-by-Side Comparison
| 属性 | Surf Scoter | Mute Swan |
|---|---|---|
| 学名 | Melanitta perspicillata | 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 | 45.3 cm (17.8 in) | 235.0 cm (92.5 in) |
| 体重 | 1019.75 g (35.97 oz) | 11000.0 g (388.01 oz) |
| 食性 | Dives for molluscs, crustaceans, and herring spawn in coastal waters. Uses its distinctive swollen bill … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 产卵数 | 5-9 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Surf Scoter
Male produces a low, gurgling burble; female gives a crow-like, guttural cawing. The female's rasping, crow-like call is startling; males make soft, liquid gurgling notes during courtship.
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
Surf Scoter
Breeds in boreal forests and tundra of northern North America. Winters along Pacific and Atlantic coasts south to Baja California and the Carolinas.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
保护状况
Surf Scoter
Mute Swan
How to Tell Them Apart
Surf Scoter
Male is entirely glossy black except for white patches on forehead and nape; bill tricolored orange, red, and white with black spot. Female sooty-brown with two white facial patches.
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
Surf Scoter
丑鸭（白头黑海番鸭）因雄鸟嘴部具大型橙白色斑块，似戴眼镜而得名。全身黑色，嘴部橙白黑三色，头部具白色和锈色斑点；雌鸟褐色。繁殖于北美北部泰加林的湖泊，越冬于北太平洋和大西洋沿岸。善深潜，以软体动物和甲壳类为食。
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.