Wood Duck vs African Black Duck
Aix sponsa เปรียบเทียบกับ Anas sparsa
Side-by-Side Comparison
| คุณสมบัติ | Wood Duck | African Black Duck |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Aix sponsa | Anas sparsa |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 44.1 cm (17.4 in) | 49.5 cm (19.5 in) |
| น้ำหนัก | 691.75 g (24.40 oz) | 996.8333333333334 g (35.16 oz) |
| อาหาร | Dabbles for seeds and aquatic invertebrates; diet shifts between plant matter and invertebrates seasonally in … | -- |
| จำนวนไข่ | 9-15 | 4-9 |
| Population Trend | — | — |
Habitat Comparison
Wood Duck
Wooded swamps, beaver ponds, forested river margins, and tree-lined lakes in eastern and western North America. Nests in tree cavities up to 15m high. Readily uses nest boxes. Winters on wooded freshwater wetlands.
African Black Duck
Fast-flowing rocky rivers and streams, mountain gorges, and waterfalls from sea level to 4,000 m across sub-Saharan Africa from Ethiopia and Kenya south to the Cape. Requires clear turbulent water with boulders.
Song & Call Comparison
Wood Duck
Male gives a loud, rising 'jeeee' whistle; female gives a soft, nasal 'oo-eek'. One of North America's most beautiful ducks; its call matches its spectacular appearance.
African Black Duck
Produces a harsh, resonant quacking call; alarm is a loud, emphatic quack repeated rapidly. Both sexes call with strong quacking; pairs duet with synchronized calls along African rivers.
Geographic Range & Migration
Wood Duck
Breeds in Eurasia; winters across tropical and southern Africa, the Middle East, and South and Southeast Asia.
African Black Duck
สถานะการอนุรักษ์
Wood Duck
African Black Duck
How to Tell Them Apart
Wood Duck
Males iridescent green and purple-crested head with white throat patches and facial stripes. Chestnut breast, buffy flanks, dark back. Red eye and bill. Females gray-brown with white eye-ring teardrop. Spectacular …
African Black Duck
Dark blackish-brown plumage with bold white spots on back and scapulars. Iridescent blue-green speculum with white borders. Head dark with pale spots. Bill and legs dark gray. Sexes similar. Fast-flowing …
About These Birds
Wood Duck
One of North America's most ornate ducks; males have an iridescent green-and-purple crested head, complex face patterning, chestnut breast, and colorful bill. Females are elegantly marked in brown and grey. Nests in tree cavities along forested waterways. Recovered strongly from near-extinction after 1918 legal protection.
African Black Duck
A medium-sized dark brown duck with white spots on the back, a dark bill, and orange legs. Found along fast-flowing rocky rivers and streams in Africa. Territorial and monogamous; pairs defend stretches of river. Related to Pacific Black Duck.