White-faced Whistling-duck vs Mandarin Duck
Dendrocygna viduata 对比 Aix galericulata
Side-by-Side Comparison
| 属性 | White-faced Whistling-duck | Mandarin Duck |
|---|---|---|
| 学名 | Dendrocygna viduata | Aix galericulata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 44.0 cm (17.3 in) |
| 翼展 | 42.9 cm (16.9 in) | 70.0 cm (27.6 in) |
| 体重 | 689.5 g (24.32 oz) | 570.0 g (20.11 oz) |
| 食性 | Grazes subarctic tundra grasses and sedges; winters on coastal salt marshes eating saltmarsh grasses and … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 产卵数 | 4-16 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
White-faced Whistling-duck
Freshwater lakes, marshes, rice paddies, flooded fields, and slow-moving rivers in sub-Saharan Africa and tropical South America. Tolerates a wide range of modified wetlands. Nomadic, following water availability.
Mandarin Duck
Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.
Song & Call Comparison
White-faced Whistling-duck
A clear, 3-syllable whistle 'wee-wee-WEE' — the origin of 'whistling-duck'. Given in noisy flocks during flight. Also gives a softer 'de-de-de' contact call on water.
Mandarin Duck
Male gives a low whistled 'hib' or 'weep'. Female utters a soft quacking 'kek'. Generally quiet and secretive. No loud territorial song; vocalizations subtle and brief.
Geographic Range & Migration
White-faced Whistling-duck
Found in floodplains and wetlands of the Llanos in Venezuela and eastern Colombia. Sedentary and locally nomadic in wet savannas.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
保护状况
White-faced Whistling-duck
Mandarin Duck
How to Tell Them Apart
White-faced Whistling-duck
Distinctive white face and throat contrasting with black hindneck. Breast chestnut; sides and flanks barred black and white. Back brown. Long gray legs. Sexes identical; upright whistling-duck posture.
Mandarin Duck
Breeding males have an elaborate pattern of orange, green, white, and purple with distinctive orange sail feathers on the back. Females are grey-brown with a white eye-ring and stripe.
Small red bill in breeding males, pinkish in females
About These Birds
White-faced Whistling-duck
白脸树鸭分布于非洲撒哈拉以南和南美洲中部至北部地区，是数量最多的树鸭之一。面部白色，额和颈部黑色，体羽棕褐色，腹部黑白相间横纹醒目。常栖于淡水湖泊、河流和湿地，以水生植物和昆虫为食。常结数千只的大群活动，鸣声响亮。
Mandarin Duck
The mandarin duck is widely considered the most beautiful duck in the world. In East Asian culture, mandarin ducks symbolize love and fidelity because they form strong pair bonds. Unlike most ducks, mandarins nest in tree holes up to 9 meters above the ground, and day-old ducklings must leap to the ground.