American Black Duck vs Common Pochard
Anas rubripes comparado con Aythya ferina
Side-by-Side Comparison
| Atributo | American Black Duck | Common Pochard |
|---|---|---|
| Nombre científico | Anas rubripes | Aythya ferina |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Vulnerable |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 41,7 cm (16.4 in) |
| Peso | 1211,25 g (42.73 oz) | 845,5 g (29.82 oz) |
| Dieta | -- | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow water; diet dominated by hard-shelled benthic … |
| Tamaño de la puesta | 1-17 | 3-22 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Common Pochard 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.
Common Pochard
Breeds on freshwater lakes and marshes with emergent vegetation across Eurasia from Iceland and western Europe east to Siberia. Winters on large open lakes, reservoirs, and estuaries.
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.
Common Pochard
Male emits a soft, wheezing purr; female gives a harsh, grating quacking series. The male's gentle, sibilant purring contrasts with the female's loud, grating call on European and Asian lakes.
Geographic Range & Migration
American Black Duck
Common Pochard
Breeds across northern and central North America; winters in Mexico, Central America, and along both US coasts.
Estado de conservación
American Black Duck
Common Pochard
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 …
Common Pochard
Males have chestnut-red head and neck; black breast; pale gray body; black undertail. Red eye. Blue-gray bill with dark base and tip. Females brown with pale face and eye-ring. Gray …
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.
Common Pochard
El porrón europeo o porrón común es un pato buceador de tamaño mediano que se reproduce en Europa y Asia y que inverna más al sur, incluyendo el sur de Europa y Asia meridional. El macho tiene la cabeza y el cuello de color castaño rojizo, el pecho negro y el cuerpo gris. Habita en lagos y embalses con abundante vegetación acuática sumergida.