West Indian Whistling-duck vs Black-headed Duck
Dendrocygna arborea comparado con Heteronetta atricapilla
Side-by-Side Comparison
| Atributo | West Indian Whistling-duck | Black-headed Duck |
|---|---|---|
| Nombre científico | Dendrocygna arborea | Heteronetta atricapilla |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Near Threatened | Least Concern |
| Longitud | — | — |
| Envergadura | 51,3 cm (20.2 in) | 34,7 cm (13.7 in) |
| Peso | 1030,0 g (36.33 oz) | 528,5 g (18.64 oz) |
| Dieta | Eats grasses, sedges, and grains; migratory goose foraging in Arctic tundra in summer; overwinters on … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| Tamaño de la puesta | 4-16 | 2 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
West Indian Whistling-duck only
Black-headed Duck only
West Indian Whistling-duck
Freshwater lakes, mangrove swamps, palm savannas, and forested wetlands in the Greater and Lesser Antilles. Nests in palm crowns and hollow trees. Highly dependent on Caribbean wet forests and freshwater lagoons.
Song & Call Comparison
West Indian Whistling-duck
A loud, 3-syllable whistle 'whee-whee-whee'. The NT conservation status reflects population pressures. Less commonly heard than its more abundant whistling-duck relatives.
Black-headed Duck
Male gives a soft, raspy peeping note; female produces a muted quack. An obligate brood parasite with reduced vocalizations; subdued calls suit its secretive lifestyle among Argentine reeds.
Geographic Range & Migration
West Indian Whistling-duck
Found in grassy wetlands and floodplains of Madagascar. Non-migratory and endemic to the island's eastern marshes.
Black-headed Duck
Resident in southern South America from southern Brazil and Bolivia south to Argentina and Chile. Found on lakes and marshes in open lowlands.
Estado de conservación
West Indian Whistling-duck
Black-headed Duck
How to Tell Them Apart
West Indian Whistling-duck
Dark brown upperparts; head and neck dark with pale sides. Flanks black with bold white spots. Breast dark brown; belly blackish with white flank streaks. Long dark legs. Largest Dendrocygna. …
Black-headed Duck
Male has distinctive jet-black head and neck, warm chestnut-brown back, and pale buff underparts; blue-grey bill with red base. Female is streaked brown above with pale supercilium and whitish underparts.
About These Birds
West Indian Whistling-duck
El pato silbador del Caribe o pato silbador cubano es el mayor de los patos silbadores y está restringido al Caribe. Tiene plumaje marrón oscuro con la cabeza más pálida y manchas negras y blancas en los flancos. Habita en manglares, bosques costeros y palmares, anidando en palmeras. Está clasificado como vulnerable por la caza y la pérdida de hábitat.
Black-headed Duck
El pato cabeza negra es un pequeño pato buceador (~530 g) de América del Sur, familia Anatidae, y el único miembro del género Heteronetta. Tiene la cabeza negra en el macho y cuerpo marrón. Parásita de nido obligada: pone sus huevos en los nidos de otras aves acuáticas, especialmente fochas y pollas de agua. Habita en lagos y lagunas con vegetación emergente de Argentina, Bolivia, Brasil, Chile, Paraguay y Uruguay. No cría su propia cría nunca.