Chiloe Wigeon vs Mute Swan
Mareca sibilatrix 对比 Cygnus olor
Side-by-Side Comparison
| 属性 | Chiloe Wigeon | Mute Swan |
|---|---|---|
| 学名 | Mareca sibilatrix | 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 | 49.0 cm (19.3 in) | 235.0 cm (92.5 in) |
| 体重 | 922.8333333333334 g (32.55 oz) | 11000.0 g (388.01 oz) |
| 食性 | Dabbles for seeds and aquatic invertebrates; diet varies between plant matter and invertebrates seasonally in … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 产卵数 | 2-13 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Chiloe Wigeon
Lakes, rivers, freshwater marshes, and coastal lagoons in southern South America from southern Peru and Bolivia south through Chile and Argentina to Tierra del Fuego and the Falkland Islands.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Chiloe Wigeon
Male utters a short, melodious whistle; female gives a low purring note. Pairs and flocks call with clear piping exchanges across South American wetlands and coastal lagoons.
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
Chiloe Wigeon
Found across Australia, New Guinea, Indonesia, and the Philippines. Nomadic in drier areas; resident in well-watered regions.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
保护状况
Chiloe Wigeon
Mute Swan
How to Tell Them Apart
Chiloe Wigeon
Iridescent dark green head with white forehead blaze. Black and white barred flanks; rufous breast; white belly. White forewing patch. Legs blue-gray. Females similar but duller. South American temperate species.
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
Chiloe Wigeon
南美赤颈鸭是南美洲南部常见的鸭子，雄鸟头颈深绿色有光泽，胸部砖红色，体侧白色，翼镜翠绿色鲜艳；雌鸟羽色较暗。分布于智利、阿根廷和乌拉圭，越冬于巴西南部。常在湖泊和沼泽中觅食水生植物，也在草地上取食嫩草。
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.