Common Goldeneye vs Spotted Whistling-duck
Bucephala clangula comparado com Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Common Goldeneye | Spotted Whistling-duck |
|---|---|---|
| Nome científico | Bucephala clangula | Dendrocygna guttata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 41,7 cm (16.4 in) | 41,3 cm (16.3 in) |
| Peso | 921,0 g (32.49 oz) | 677,5 g (23.90 oz) |
| Dieta | Dives for aquatic invertebrates, crustaceans, molluscs, and small fish. Forages in lakes, rivers, and coastal … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamanho da postura | 1-28 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Common Goldeneye only
Nenhum
Spotted Whistling-duck only
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
Common Goldeneye
Male emits a buzzy, insect-like zeee-zeee-zeee wing whistle; female gives a grating quack. The mechanical wing-whistle produced by the male in display flight is the species' most distinctive sound.
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
Common Goldeneye
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large lakes south to the Mediterranean and the Gulf states.
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
Common Goldeneye
Spotted Whistling-duck
How to Tell Them Apart
Common Goldeneye
Male has glossy green-black head with round white spot at bill base; body white with black back and scapulars; yellow eye. Female has chocolate-brown head, white collar, and grey body.
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
Common Goldeneye
O pato-olho-de-ouro é um pato mergulhador médio notável pelos seus olhos amarelo-dourados brilhantes. Os machos têm cabeça verde-preta iridescente com remendo branco redondo perto do bico. Cria em buracos de árvore em florestas boreais junto a lagos de água limpa. Os filhotes saltam dos buracos do ninho pouco depois de eclodir. Hiberna em costas marinhas e grandes corpos de água dulcícola. O som de assobio dos machos com as asas durante o voo é inconfundível.
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.