American Black Duck vs Cape Barren Goose
Anas rubripes comparado con Cereopsis novaehollandiae
Side-by-Side Comparison
| Atributo | American Black Duck | Cape Barren Goose |
|---|---|---|
| Nombre científico | Anas rubripes | Cereopsis novaehollandiae |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 94,2 cm (37.1 in) |
| Peso | 1211,25 g (42.73 oz) | 3816,6666666666665 g (134.63 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 1-17 | 3-6 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Cape Barren Goose only
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.
Cape Barren Goose
Open grasslands, heathlands, and low scrub on offshore islands and coastal mainland of southern Australia. Grazes in open areas. Nests on the ground. Largely sedentary with some mainland movements in winter.
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.
Cape Barren Goose
A loud, grunting 'honk-honk' from both sexes. The Cape Barren Goose gives pig-like grunting and cackling sounds. Not musical; its calls are distinctive but harsh.
Estado de conservación
American Black Duck
Cape Barren Goose
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 …
Cape Barren Goose
Pale ash-gray plumage with small dark spots on wing coverts. Head whitish-gray. Bill short with prominent lime-green cere. Legs and feet pinkish-red. Sexes similar; one of few native Australian geese.
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.
Cape Barren Goose
El ganso de Nueva Holanda o pato ceniciento es un ganso endémico de Australia con plumaje gris con manchas negras en las alas y el dorso. Es inusual entre los gansos por tener el pico pequeño y amarillo verdoso con la punta negra. Habita en islas y costas del sur de Australia, donde pasta hierba en grupos. Tiene una larga esperanza de vida para un ave de su tamaño.