Mallard vs White-headed Duck
Anas platyrhynchos comparado com Oxyura leucocephala
Side-by-Side Comparison
| Atributo | Mallard | White-headed Duck |
|---|---|---|
| Nome científico | Anas platyrhynchos | Oxyura leucocephala |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Endangered |
| Comprimento | 58,0 cm (22.8 in) | — |
| Envergadura | 90,0 cm (35.4 in) | 29,7 cm (11.7 in) |
| Peso | 1100,0 g (38.80 oz) | 705,0 g (24.87 oz) |
| Dieta | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … | Dives for aquatic invertebrates, seeds, and plant roots in Mediterranean and Central Asian wetlands. Critically … |
| Tamanho da postura | 4-18 | 3-10 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
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.
White-headed Duck
Male produces a mechanical, rapid bill-drumming; female gives a harsh, grating quack. The drumming staccato display is the same pattern as other Oxyura stiff-tails; heard on Eurasian steppe lakes.
Geographic Range & Migration
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
White-headed Duck
Breeds in Spain, Turkey, central Asia, and Mongolia. Winters in the Mediterranean, the Middle East, and northern India. Globally endangered.
Estado de conservação
Mallard
White-headed Duck
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
White-headed Duck
Male has entirely white head with small black crown patch, rich chestnut-brown body, and large bulbous powder-blue bill. Female is brown with pale whitish face divided by dark streak across …
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.
White-headed Duck
O pato-de-cauda-rígida-europeu é um pato ameaçado das zonas húmidas do Paleártico. Os machos têm cabeça branca característica com calota preta e bico azul brilhante. Habita lagos salinos e rios de planície de interior. As populações sofreram declínios drásticos devido à perda de habitat e hibridização com o pato-de-cauda-rígida-americano introduzido. A sua conservação é considerada uma prioridade na Europa, com programas de controlo do pato americano implementados em vários países.