American Black Duck vs Pacific Black Duck
Anas rubripes comparado con Anas superciliosa
Side-by-Side Comparison
| Atributo | American Black Duck | Pacific Black Duck |
|---|---|---|
| Nombre científico | Anas rubripes | Anas superciliosa |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 50,2 cm (19.8 in) |
| Peso | 1211,25 g (42.73 oz) | 1000,5 g (35.29 oz) |
| Dieta | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for fish and aquatic invertebrates; serrated bill adapted for gripping prey; diet varies with … |
| Tamaño de la puesta | 1-17 | 3-15 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Pacific Black 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.
Pacific Black Duck
Freshwater and brackish wetlands across Australasia and the Pacific Islands, from freshwater lakes and rivers to coastal estuaries, mangroves, and irrigated agricultural areas. Highly adaptable to human-modified landscapes.
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.
Pacific Black Duck
Female gives a loud, emphatic quacking series; male utters a soft quip note. Common call is a loud, repeated quack; alarm is an insistent, rattling quacking burst.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Pacific Black Duck
Found across sub-Saharan Africa and Madagascar; locally sedentary in freshwater lakes and rivers year-round.
Estado de conservación
American Black Duck
Pacific Black 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 …
Pacific Black Duck
Brownish-black body with pale buff feather edges giving scaly appearance. Bold pale buff supercilium and dark eye-stripe and crown stripe on paler face. Iridescent green speculum. Gray bill; orange legs. …
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.
Pacific Black Duck
El pato negro del Pacífico es un pato grande de color marrón oscuro distribuido por Australia, Nueva Zelanda, Indonesia y las islas del Pacífico. Tiene la cabeza con rayas distintivas en blanco y negro y un espéculo alar verde-negro. Es una especie altamente adaptable que habita en una amplia variedad de humedales, desde pantanos costeros hasta lagos montañosos.