American Black Duck vs Hartlaub's Duck
Anas rubripes comparado con Pteronetta hartlaubii
Side-by-Side Comparison
| Atributo | American Black Duck | Hartlaub's Duck |
|---|---|---|
| Nombre científico | Anas rubripes | Pteronetta hartlaubii |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 53,4 cm (21.0 in) |
| Peso | 1211,25 g (42.73 oz) | 910,0 g (32.10 oz) |
| Dieta | -- | Eats seeds, aquatic invertebrates, and plant matter; dabbles in ponds and marshes; diet more invertebrate-heavy … |
| Tamaño de la puesta | 1-17 | 7-11 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Ninguno
Hartlaub's Duck 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.
Hartlaub's Duck
Tropical rainforest streams, forest pools, and shaded swamps from Guinea and Sierra Leone east through the Congo Basin to Uganda and western Kenya. Requires undisturbed riverine forest with shaded water.
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.
Hartlaub's Duck
A low, nasal 'quack' and soft 'kek-kek'. Generally quieter than other perching ducks. Calls from dense Central and West African rainforest where it is rarely observed.
Geographic Range & Migration
American Black Duck
Hartlaub's Duck
Breeds in wetlands across Eurasia; winters from Africa and the Middle East to South and Southeast Asia.
Estado de conservación
American Black Duck
Hartlaub's Duck
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 …
Hartlaub's Duck
Dark chocolate-brown body; white patches at side of head distinctive. Males have dark blue frontal shield extending from bill. Wings show pale blue-gray inner forewing. Legs gray. West African forest …
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.
Hartlaub's Duck
El pato del Hartlaub es un pato africano de color oscuro que habita en ríos, riachuelos y estanques forestales de África central occidental, desde Guinea hasta el Congo. El macho tiene la cabeza blanca con una mancha negra en la coronilla. Es una especie poco conocida y de distribución bastante restringida a los bosques densos del África ecuatorial.