Pacific Black Duck vs Wandering Whistling-duck
Anas superciliosa comparado con Dendrocygna arcuata
Side-by-Side Comparison
| Atributo | Pacific Black Duck | Wandering Whistling-duck |
|---|---|---|
| Nombre científico | Anas superciliosa | Dendrocygna arcuata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 50,2 cm (19.8 in) | 37,2 cm (14.6 in) |
| Peso | 1000,5 g (35.29 oz) | 779,5 g (27.50 oz) |
| Dieta | Dives for fish and aquatic invertebrates; serrated bill adapted for gripping prey; diet varies with … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| Tamaño de la puesta | 3-15 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Pacific Black Duck only
Ninguno
Wandering Whistling-duck only
Ninguno
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.
Wandering Whistling-duck
Tropical freshwater marshes, flooded grasslands, swamps, and lake margins from the Philippines and Indonesia through Papua New Guinea to northern and eastern Australia. Nomadic following wet season flooding.
Song & Call Comparison
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.
Wandering Whistling-duck
A soft whistle 'whi-whi-whi' in flight. Less vocal than other whistling-ducks; flocks tend to be quieter. Given at dawn and dusk during flight to roosting or feeding areas.
Geographic Range & Migration
Pacific Black Duck
Found across sub-Saharan Africa and Madagascar; locally sedentary in freshwater lakes and rivers year-round.
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Estado de conservación
Pacific Black Duck
Wandering Whistling-duck
How to Tell Them Apart
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. …
Wandering Whistling-duck
Rich chestnut-brown head and neck; dark brown back. Flanks rufous with pale buff streaks and dark spots. Belly blackish. Long, dark pinkish legs. Upright posture typical of whistling-ducks. Sexes similar.
About These Birds
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.
Wandering Whistling-duck
El pato silbador vagabundo es un pato silbador de distribución amplia en las regiones tropicales de Asia y el Pacífico, desde Borneo e Indonesia hasta Nueva Guinea y Australia. Tiene plumaje castaño con blanco y negro en los flancos. Habita en humedales tropicales, pantanos, lagunas, estanques y arrozales. Es una especie nómada que sigue las lluvias en busca de humedales.