American Black Duck vs Common Goldeneye
Anas rubripes comparado con Bucephala clangula
Side-by-Side Comparison
| Atributo | American Black Duck | Common Goldeneye |
|---|---|---|
| Nombre científico | Anas rubripes | Bucephala clangula |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 41,7 cm (16.4 in) |
| Peso | 1211,25 g (42.73 oz) | 921,0 g (32.49 oz) |
| Dieta | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for aquatic invertebrates, crustaceans, molluscs, and small fish. Forages in lakes, rivers, and coastal … |
| Tamaño de la puesta | 1-17 | 1-28 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Common Goldeneye 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.
Common Goldeneye
Male emits a buzzy, insect-like zeee-zeee-zeee wing whistle; female gives a grating quack. The mechanical wing-whistle produced by the male in display flight is the species' most distinctive 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.
Common Goldeneye
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large lakes south to the Mediterranean and the Gulf states.
Estado de conservación
American Black Duck
Common Goldeneye
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 Goldeneye
Male has glossy green-black head with round white spot at bill base; body white with black back and scapulars; yellow eye. Female has chocolate-brown head, white collar, and grey body.
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 Goldeneye
El pato chillón o porrón osculado es un pato buceador con el macho de cabeza redondeada verde-negro iridiscente y un pequeño parche blanco circular frente al ojo. Cría en bosques boreales de Europa, Asia y Norteamérica, anidando en cavidades de árboles. Cuando los patos vuelan, las alas producen un sonido silbante característico, de ahí su nombre en inglés 'goldeneye' (ojo dorado).