American Black Duck vs White-winged Duck
Anas rubripes comparado com Asarcornis scutulata
Side-by-Side Comparison
| Atributo | American Black Duck | White-winged Duck |
|---|---|---|
| Nome científico | Anas rubripes | Asarcornis scutulata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Critically Endangered |
| Comprimento | — | — |
| Envergadura | 53,4 cm (21.0 in) | 68,3 cm (26.9 in) |
| Peso | 1211,25 g (42.73 oz) | 2950,0 g (104.06 oz) |
| Dieta | -- | Feeds on seeds, plant material, and aquatic invertebrates; dabbles in shallow water; diet varies widely … |
| Tamanho da postura | 1-17 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
American Black Duck only
White-winged Duck only
Nenhum
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.
White-winged Duck
Undisturbed lowland tropical forest near slow rivers, pools, and forest swamps at low elevations in northeastern India, Bangladesh, Myanmar, and Sumatra. Requires large trees with nest cavities near permanent water.
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.
White-winged Duck
Critically endangered; extremely rare in wild. Gives low guttural hissing calls and soft wing-beating sounds. Vocalizations in wild scarcely documented given its rarity.
Geographic Range & Migration
American Black Duck
White-winged Duck
Breeds in northern Eurasia; winters in sub-Saharan Africa. A classic Palearctic–African migrant with a wide wintering range.
Estado de conservação
American Black Duck
White-winged 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 …
White-winged Duck
Dark brown body with pale spotting on head and neck. Bold white wing patch visible in flight. Yellowish-orange bill; legs orange. Head pale buffish-white speckled brown. Critically endangered SE Asian …
About These Birds
American Black Duck
O pato-negro americano é um pato dabbling robusto encontrado no leste da América do Norte. É estreitamente relacionado com o pato-real e os dois hybridizam extensivamente. Apresenta uma plumagem escura castanho-preta característica com cabeça mais pálida e espelhos violeta nas asas. Habita zonas húmidas costeiras e de interior, florestas e pradarias ao longo das regiões orientais. É uma espécie cinegética importante, mas as suas populações diminuíram devido à hibridização com patos-reais e perda de habitat.
White-winged Duck
A large dark duck with a pale speckled head, brownish body, and broad white wing patch visible in flight. One of Asia's most endangered ducks. Found in undisturbed lowland forest near rivers in South and Southeast Asia. Nests in large tree hollows. Threatened by deforestation and hunting.