American Black Duck vs Silver Teal
Anas rubripes comparado con Spatula versicolor
Side-by-Side Comparison
| Atributo | American Black Duck | Silver Teal |
|---|---|---|
| Nombre científico | Anas rubripes | Spatula versicolor |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 37,0 cm (14.6 in) |
| Peso | 1211,25 g (42.73 oz) | 409,75 g (14.45 oz) |
| Dieta | -- | Dabbles for seeds, aquatic plants, and invertebrates; diet varies with season; forages in shallow ponds … |
| Tamaño de la puesta | 1-17 | 6-10 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Silver Teal 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.
Silver Teal
Freshwater wetlands, marshes, lakes, and flooded fields from sea level to 3,500 m in southern South America from Peru and Bolivia through Chile, Argentina, Uruguay, and southern Brazil.
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.
Silver Teal
Male produces a soft, nasal prrp note; female gives a subdued quack. Quiet vocalizations suit the species' secretive nature in South American reedy marshes.
Geographic Range & Migration
American Black Duck
Silver Teal
Breeds in sub-Arctic Europe and western Russia; winters on coasts of Western Europe, the Mediterranean, and the Caspian Sea.
Estado de conservación
American Black Duck
Silver Teal
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 …
Silver Teal
Black crown contrasting with white face and sides. Body pale silvery-gray with fine dark vermiculations. Bold yellow-and-black bill. Blue-gray forewing and iridescent green speculum in flight. Sexes similar.
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.
Silver Teal
A medium-sized teal with a striking black cap, white face, blue bill with yellow sides, and boldly spotted scaly-looking flanks. Widespread in lowland and mid-altitude South America. Often found in pairs or small groups. Feeds by dabbling in shallow water.