Torrent Duck vs Mute Swan
Merganetta armata 비교 대상 Cygnus olor
Side-by-Side Comparison
| 속성 | Torrent Duck | Mute Swan |
|---|---|---|
| 학명 | Merganetta armata | Cygnus olor |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | 152.0 cm (59.8 in) |
| 날개 폭 | 32.7 cm (12.9 in) | 235.0 cm (92.5 in) |
| 체중 | 366.875 g (12.94 oz) | 11000.0 g (388.01 oz) |
| 식성 | Filter-feeds on aquatic invertebrates and seeds; dabbles in shallow wetlands; diet more plant-based in winter … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 산란 수 | 3-4 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Torrent Duck
Fast-flowing clear Andean mountain rivers and torrents at 1,500–4,500 m from Venezuela south through Colombia, Ecuador, Peru, Bolivia, and Chile to Tierra del Fuego. Requires bouldered well-oxygenated rapids.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Torrent Duck
A sharp, staccato 'pit' or 'wit' call. Males give a loud, ringing whistle. The Torrent Duck is a fast-flowing Andean river specialist; calls carry over powerful rapids.
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
Torrent Duck
Breeds in the northern prairie pothole region; winters along both coasts of the United States and south to Mexico.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
보전 상태
Torrent Duck
Mute Swan
How to Tell Them Apart
Torrent Duck
Striking sexual dimorphism. Males have white head with black stripes and red bill; dark back with rufous breast. Females gray above with rufous-cinnamon underparts. Stiff tail; specialized for fast-running rivers.
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
Torrent Duck
중간 크기의 오리로 체장 43–46cm이며, 수컷은 흰색 머리에 검은 줄무늬, 자주빛 가슴, 빨간 부리와 다리를 갖는다. 안데스 산맥의 빠른 고산 하천에 서식하는 고유종이다. 잠수하여 수생 곤충과 소형 어류를 먹는다. 관심 필요 종이다.
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.