American Black Duck vs Australasian Shoveler
Anas rubripes เปรียบเทียบกับ Spatula rhynchotis
Side-by-Side Comparison
| คุณสมบัติ | American Black Duck | Australasian Shoveler |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Anas rubripes | Spatula rhynchotis |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 53.4 cm (21.0 in) | 44.8 cm (17.6 in) |
| น้ำหนัก | 1211.25 g (42.73 oz) | 678.0 g (23.92 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | 1-17 | 5-13 |
| Population Trend | — | — |
Habitat Comparison
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American Black Duck only
Australasian Shoveler only
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American Black Duck
Freshwater and brackish wetlands in eastern North America from Atlantic Canada south along the coast to Georgia. Breeds in northern bogs and wetlands. Winters on coastal marshes, estuaries, and freshwater lakes.
Australasian Shoveler
Freshwater and brackish wetlands, lakes, and marshes across southern and eastern Australia and New Zealand. Nomadic in Australia; follows seasonal flooding. Often on permanent lakes and coastal lagoons.
Song & Call Comparison
American Black Duck
Female produces a loud, deep quacking series; male gives a low, raspy grunt. Voice is deeper and huskier than a Mallard; pairs call powerfully across northeastern North American wetlands.
Australasian Shoveler
Male emits a soft, muffled tok; female gives a series of rapid, descending quacks. The female's characteristic quacking laugh is similar to the Northern Shoveler but slightly lower pitched.
สถานะการอนุรักษ์
American Black Duck
Australasian Shoveler
How to Tell Them Apart
American Black Duck
Sooty dark brown body; head and neck paler buff with dark streaking. Iridescent purple speculum without white border. Males have yellow-green bill; females olive with orange blotches. Silvery underwings in …
Australasian Shoveler
Males have slate-blue head with white crescent before eye; rich rufous-brown below with white breast spot. Blue forewing and green speculum. Females mottled brown. Long spatulate bill bluish-gray. Dimorphic.
About These Birds
American Black Duck
A large dark brown dabbling duck closely resembling a very dark female Mallard, with purple speculum, yellowish-olive bill in males, and orange legs. Common in eastern North America. Hybridizes freely with Mallard; pure populations declining in the interior.
Australasian Shoveler
A medium-sized shoveler with the distinctive large bill. Males are brownish with blue-grey wing patches and white facial crescent; females are mottled brown. Found in Australia and New Zealand. Nomadic within Australia; follows seasonal inland flooding.