American Black Duck vs Goosander
Anas rubripes comparado con Mergus merganser
Side-by-Side Comparison
| Atributo | American Black Duck | Goosander |
|---|---|---|
| Nombre científico | Anas rubripes | Mergus merganser |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 54,2 cm (21.3 in) |
| Peso | 1211,25 g (42.73 oz) | 1488,0 g (52.49 oz) |
| Dieta | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for fish, especially salmon and trout, in rivers and lakes. Also takes frogs, crustaceans, … |
| Tamaño de la puesta | 1-17 | 4-22 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Ninguno
Goosander 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.
Goosander
Male gives a harsh, crow-like karrr call; female produces a guttural, grunting series. Both sexes produce loud, nasal calls; the male's harsh croaking is a distinctive winter river sound.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Goosander
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large rivers south to the Mediterranean and South Asia.
Estado de conservación
American Black Duck
Goosander
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 …
Goosander
Male has dark green iridescent head, salmon-pink suffused white body, and black back; red serrated bill. Female has rufous-brown head with neat white chin patch, grey body, and pinkish-buff breast.
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.
Goosander
El mergo mayor o serreta grande es el mayor de los mergansos, con el macho de cabeza verde-negro brillante y el cuerpo blanco con la espalda negra. Habita en ríos y lagos de agua clara en bosques boreales y montañosos del hemisferio norte. Es un experto pescador que captura peces grandes sumergiéndose; en los ríos, puede perseguir peces salmónidos de gran tamaño.