American Black Duck vs Musk Duck
Anas rubripes в сравнении с Biziura lobata
Side-by-Side Comparison
| Характеристика | American Black Duck | Musk Duck |
|---|---|---|
| Научное название | Anas rubripes | Biziura lobata |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 53,4 cm (21.0 in) | 42,3 cm (16.7 in) |
| Масса | 1211,25 g (42.73 oz) | 1930,75 g (68.11 oz) |
| Питание | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for aquatic invertebrates, small fish, and plant material in Australian freshwater lakes. Highly aquatic; … |
| Размер кладки | 1-17 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
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.
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.
Musk Duck
Male produces a loud, explosive plonk call followed by bill-drumming on the water surface; female gives a harsh quack. The male's bizarre splashing display is unique and unmistakable among Australian …
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Musk Duck
Endemic to southern Australia, including southeastern and southwestern regions. Found on wetlands with lignum and reeds.
Охранный статус
American Black Duck
Musk Duck
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 …
Musk Duck
Both sexes are uniformly dark sooty-brown, densely barred and vermiculated with black; male has distinctive pendulous black lobe hanging below bill. Females and immatures are smaller and lack the lobe.
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.
Musk Duck
Australia's largest stiff-tailed duck (~1.9 kg), family Anatidae, males bearing a leathery lobe pendant from the bill. Inhabits deep permanent freshwater lakes and swamps in southern Australia. Males emit a musky odor during courtship displays. Dives for fish, frogs, crustaceans, and mollusks. Least Concern; solitary and rarely seen due to secretive behavior.