Fulvous Whistling-duck vs Black-headed Duck
Dendrocygna bicolor comparado con Heteronetta atricapilla
Side-by-Side Comparison
| Atributo | Fulvous Whistling-duck | Black-headed Duck |
|---|---|---|
| Nombre científico | Dendrocygna bicolor | Heteronetta atricapilla |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 44,6 cm (17.6 in) | 34,7 cm (13.7 in) |
| Peso | 733,4 g (25.87 oz) | 528,5 g (18.64 oz) |
| Dieta | Grazes grasses and sedges in Arctic tundra; large migratory goose; winter diet dominated by agricultural … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| Tamaño de la puesta | 6-16 | 2 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Fulvous Whistling-duck only
Ninguno
Black-headed Duck only
Fulvous Whistling-duck
Freshwater marshes, rice paddies, flooded fields, shallow lakes, and river margins across warm tropical and subtropical regions of the Americas, Africa, and South Asia. Highly nomadic, following rains.
Song & Call Comparison
Fulvous Whistling-duck
A soft, rhythmic 'ka-WHEE-00' whistle. Flocks give continuous soft whistling sounds during flight over tropical wetlands. Also gives shorter 'kee' contact notes.
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
Fulvous Whistling-duck
Breeds across Eurasia from Iceland and western Europe to eastern Siberia; winters from Britain to the Mediterranean and South Asia.
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
Fulvous Whistling-duck
Black-headed Duck
How to Tell Them Apart
Fulvous Whistling-duck
Warm fulvous-buff underparts with creamy white flank stripes. Upperparts dark brown with pale buff feather edges. Dark brown stripe down back of neck. Long bluish-gray legs. Sexes identical.
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
Fulvous Whistling-duck
El pato silbador leonado es el pato silbador de distribución más amplia, encontrándose en América del Sur y Central, África subsahariana y el sur de Asia. Tiene plumaje de color canela rojizo uniforme con las alas y el dorso de color oscuro. Es gregario y habita en lagunas, arrozales, pantanos y aguas tropicales abiertas, a menudo formando grandes bandadas.
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.