Mallard vs Blue-winged Teal
Anas platyrhynchos 对比 Spatula discors
Side-by-Side Comparison
| 属性 | Mallard | Blue-winged Teal |
|---|---|---|
| 学名 | Anas platyrhynchos | Spatula discors |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 58.0 cm (22.8 in) | — |
| 翼展 | 90.0 cm (35.4 in) | 35.7 cm (14.1 in) |
| 体重 | 1100.0 g (38.80 oz) | 400.5 g (14.13 oz) |
| 食性 | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … | Dabbles for aquatic invertebrates and seeds; diet shifts between plant-heavy and invertebrate-heavy phases seasonally. |
| 产卵数 | 4-18 | 6-15 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Blue-winged Teal
Breeds on prairie wetlands, lakes, and marshes across North America. Winters on freshwater and coastal wetlands from the southern United States through Central America to South America.
Song & Call Comparison
Mallard
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
Blue-winged Teal
Male gives a high, thin whistle; female produces a rapid, descending quacking laugh. The nasal, laughing female call is immediately recognizable in North American freshwater marshes.
Geographic Range & Migration
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
Blue-winged Teal
Breeds in tundra of northern Russia and Alaska; winters on the open North Pacific from Alaska to Japan and California.
保护状况
Mallard
Blue-winged Teal
How to Tell Them Apart
Mallard
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
Blue-winged Teal
Males have slate-blue head with bold white crescent before eye. Body brown with dark spots. Pale blue forewing patch and green speculum conspicuous. Females mottled brown with pale loral spot. …
About These Birds
Mallard
The mallard is the ancestor of most domestic duck breeds and the most abundant and widespread dabbling duck in the world. Males perform elaborate courtship displays including head-bobbing and whistle-grunt calls. Mallards are highly adaptable, thriving in both wilderness and urban environments.
Blue-winged Teal
蓝翅鸭是北美常见的小型水面鸭，以飞行时翼肩的天蓝色斑块和绿色翼镜著称。繁殖于北美大平原和北部湿地，越冬于美国南部、中美洲至南美洲北部，是迁徙距离较长的北美鸭类之一。雄鸟头部蓝灰色，脸颊有白色新月形斑；雌鸟褐色。以水草、种子和水生昆虫为食。