Common Ostrich vs Mallard
Struthio camelus 对比 Anas platyrhynchos
Side-by-Side Comparison
| 属性 | Common Ostrich | Mallard |
|---|---|---|
| 学名 | Struthio camelus | Anas platyrhynchos |
| 目 | Struthioniformes | Anseriformes |
| 科 | Struthionidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 210.0 cm (82.7 in) | 58.0 cm (22.8 in) |
| 翼展 | 200.0 cm (78.7 in) | 90.0 cm (35.4 in) |
| 体重 | 100000.0 g (3527.40 oz) | 1100.0 g (38.80 oz) |
| 食性 | Omnivorous — plants, seeds, roots, flowers, insects, and small vertebrates. Swallows pebbles to aid digestion … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| 产卵数 | 2-11 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Common Ostrich
Open arid and semi-arid habitats including savannas, Sahel, and dry woodlands across Africa.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Common Ostrich
Male produces a surprisingly deep, resonant booming roar — remarkably lion-like. Also gives whistling and hissing sounds. Females and chicks emit softer grunts and squeaks.
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.
Geographic Range & Migration
Common Ostrich
Sub-Saharan Africa. Formerly also found in the Middle East and parts of Asia. Farmed worldwide.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
保护状况
Common Ostrich
Mallard
How to Tell Them Apart
Common Ostrich
Males have black body plumage with white wing and tail feathers. Females and immatures are grey-brown. Bare skin on the neck and thighs varies from pink to blue.
Broad, flat bill adapted for an omnivorous diet
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
About These Birds
Common Ostrich
非洲鸵鸟（Struthio camelus）— 世界上最大的鸟，栖息于非洲草原。虽然不能飞翔，但奔跑速度可达每小时70公里，产下世界上最大的蛋。
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.