Common Scoter vs Mute Swan
Melanitta nigra 比較対象 Cygnus olor
Side-by-Side Comparison
| 属性 | Common Scoter | Mute Swan |
|---|---|---|
| 学名 | Melanitta nigra | Cygnus olor |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 152.0 cm (59.8 in) |
| 翼開長 | 44.2 cm (17.4 in) | 235.0 cm (92.5 in) |
| 体重 | 1127.25 g (39.76 oz) | 11000.0 g (388.01 oz) |
| 食性 | Dives for bivalves, especially cockles, mussels, and clams, in shallow coastal seas. Also eats crustaceans … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 一腹卵数 | 6-8 | 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
Common Scoter
Male gives a soft, piping whistle; female produces a harsh, rasping call. The male's piping whistle is subtle; female's harsh calls dominate on European winter coasts and estuaries.
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
Common Scoter
Breeds on moorland and boreal tundra from Iceland and Britain east to western Siberia. Winters on northwestern European coasts and the Baltic Sea.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
保全状況
Common Scoter
Mute Swan
How to Tell Them Apart
Common Scoter
Male is entirely sooty black without white markings; orange-yellow patch on upper bill with small black knob. Female brownish-black above with contrasting pale cream cheeks and throat.
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
Common Scoter
コモンスコーター。ヨーロッパと西アジアのツンドラで繁殖し、西ヨーロッパ沿岸で越冬する。雄は全身黒色で黄色い嘴基部が特徴的。貝類、甲殻類、小魚を潜水して捕食する。低危険種。
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.