Wood Duck vs Spotted Whistling-duck
Aix sponsa comparado com Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Wood Duck | Spotted Whistling-duck |
|---|---|---|
| Nome científico | Aix sponsa | Dendrocygna guttata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 44,1 cm (17.4 in) | 41,3 cm (16.3 in) |
| Peso | 691,75 g (24.40 oz) | 677,5 g (23.90 oz) |
| Dieta | Dabbles for seeds and aquatic invertebrates; diet shifts between plant matter and invertebrates seasonally in … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamanho da postura | 9-15 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Wood Duck only
Spotted Whistling-duck only
Wood Duck
Wooded swamps, beaver ponds, forested river margins, and tree-lined lakes in eastern and western North America. Nests in tree cavities up to 15m high. Readily uses nest boxes. Winters on wooded freshwater wetlands.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Wood Duck
Male gives a loud, rising 'jeeee' whistle; female gives a soft, nasal 'oo-eek'. One of North America's most beautiful ducks; its call matches its spectacular appearance.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Wood Duck
Breeds in Eurasia; winters across tropical and southern Africa, the Middle East, and South and Southeast Asia.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Estado de conservação
Wood Duck
Spotted Whistling-duck
How to Tell Them Apart
Wood Duck
Males iridescent green and purple-crested head with white throat patches and facial stripes. Chestnut breast, buffy flanks, dark back. Red eye and bill. Females gray-brown with white eye-ring teardrop. Spectacular …
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Wood Duck
Um dos patos mais vistosos da América do Norte, pertencente à família Anatidae. O Pato-carolina (Aix sponsa) habita florestas ripárias e zonas úmidas arboladas no leste da América do Norte e na costa do Pacífico. Mede aproximadamente 47-54 cm. Os machos têm plumagem nupcial elaborada com crista verde e roxa iridescente, patches vermelhos e brancos no rosto. Nidifica em cavidades de árvores próximas a água. Alimenta-se de sementes, frutos e insetos aquáticos. Um dos poucos patos que empoleira em árvores. …
Spotted Whistling-duck
O parreco-pintalgado é um pato assobiadeiro grande encontrado nas Filipinas, Indonésia e Papua Nova Guiné. Distingue-se pelos seus flancos e cobertura da cauda largamente com pintas brancas num fundo escuro. Tem pescoço escuro, coroa castanha e bico e pernas cinzentos. Habita zonas húmidas tropicais de baixa altitude, lagos e arrozais. Tem uma distribuição fragmentada e é classificado como quase ameaçado em algumas regiões.