American Black Duck vs White-winged Scoter
Anas rubripes comparado con Melanitta deglandi
Side-by-Side Comparison
| Atributo | American Black Duck | White-winged Scoter |
|---|---|---|
| Nombre científico | Anas rubripes | Melanitta deglandi |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 54,0 cm (21.3 in) |
| Peso | 1211,25 g (42.73 oz) | 1647,1666666666667 g (58.10 oz) |
| Dieta | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for molluscs, crustaceans, and small fish in coastal and inland waters. Favours mussels and … |
| Tamaño de la puesta | 1-17 | 6-16 |
| Population Trend | — | — |
Habitat Comparison
American Black Duck only
White-winged Scoter only
Ninguno
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.
White-winged Scoter
Male produces a soft, whistled note; female gives a harsh, grating call. Similar to Velvet Scoter; the female's rasping call carries across North Pacific bays and coastal inlets.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
White-winged Scoter
Breeds in boreal forest and tundra of interior North America. Winters along Pacific and Atlantic coasts south to California and the Gulf states.
Estado de conservación
American Black Duck
White-winged Scoter
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 Scoter
Male is black with conspicuous white secondaries and a white comma-shaped mark below eye; orange-yellow bill with black basal knob. Female dark brownish-black with two pale facial patches and white …
About These Birds
American Black Duck
El pato negro americano es un gran pato de color marrón muy oscuro con una cabeza más clara y un llamativo espéculo alar púrpura. Habita en humedales del este de Norteamérica y se está hibridando cada vez más con el pato de collar introducido en su rango, lo que representa una amenaza para su pureza genética. Prefiere marismas costeras, pantanos boscosos y lagos tranquilos.
White-winged Scoter
El negrón aliblanco norteamericano es un gran pato marino con el macho negro con un parche blanco oval bajo el ojo y el ala de color blanco. Habita en costas marinas del Pacífico de América del Norte durante el invierno, donde se alimenta principalmente de mejillones, almejas y otros moluscos buceando. Cría en lagos de bosques boreales del norte de Norteamérica.