Harlequin Duck vs Mute Swan
Histrionicus histrionicus 比較対象 Cygnus olor
Side-by-Side Comparison
| 属性 | Harlequin Duck | Mute Swan |
|---|---|---|
| 学名 | Histrionicus histrionicus | 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 | 38.8 cm (15.3 in) | 235.0 cm (92.5 in) |
| 体重 | 553.0 g (19.51 oz) | 11000.0 g (388.01 oz) |
| 食性 | Forages in fast-flowing streams for aquatic insect larvae, amphipods, and small fish. Dives and clings … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 一腹卵数 | 3-9 | 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
Harlequin Duck
Male gives a squeaky, mouse-like squeal; female produces a guttural, grunting call. The male's bizarre, high-pitched squealing call is completely unexpected in such a compact seaduck.
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
Harlequin Duck
Breeds on fast-flowing rivers in Iceland, Greenland, and northern North America. Winters along rocky Pacific and Atlantic coasts south to California.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
保全状況
Harlequin Duck
Mute Swan
How to Tell Them Apart
Harlequin Duck
Male is slate-blue with bold white crescent before eye, white spots and streaks on head, neck, and scapulars, and rich chestnut flanks. Female is dark sooty-brown with three white facial …
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
Harlequin Duck
アメリカヒメハジロはカナダ・アイスランド・グリーンランドで繁殖し北アメリカ・ヨーロッパの太平洋・大西洋岸で越冬するマガモ族の小型潜水カモ（体長38〜50 cm）。雄は白い斑点・縞模様の灰色・赤褐色の鮮やかな羽衣が特徴。急流の渓流で繁殖し、越冬地では荒波の岩礁海岸に生息。
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.