Chestnut Teal vs Spotted Whistling-duck
Anas castanea comparado com Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Chestnut Teal | Spotted Whistling-duck |
|---|---|---|
| Nome científico | Anas castanea | Dendrocygna guttata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 40,4 cm (15.9 in) | 41,3 cm (16.3 in) |
| Peso | 662,25 g (23.36 oz) | 677,5 g (23.90 oz) |
| Dieta | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow water; diet heavier in molluscs in … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamanho da postura | 5-17 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Chestnut Teal only
Nenhum
Spotted Whistling-duck only
Chestnut Teal
Coastal and estuarine wetlands, saltmarshes, estuaries, and coastal freshwater lakes in southeastern and southwestern Australia. More closely tied to coastal habitats than most Australian ducks.
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
Chestnut Teal
Female produces a loud, emphatic quacking series; male gives a high, whistled note. The female's resonant quacking call is a familiar sound of southern Australian coastal wetlands.
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
Chestnut Teal
Breeds in the north-central prairies; winters along the Atlantic and Gulf coasts of the United 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
Chestnut Teal
Spotted Whistling-duck
How to Tell Them Apart
Chestnut Teal
Strong dimorphism. Males have iridescent dark green head; rich chestnut underparts with white flank patch. Brown back; dark undertail. Females mottled brown with pale face. Iridescent green speculum. Australian coastal.
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
Chestnut Teal
Um pato pequeno da família Anatidae, endêmico da Austrália e da Tasmânia. O Pato-castanho (Anas castanea) habita lagos, lagoas, pântanos, zonas úmidas interiores e áreas costeiras. Mede aproximadamente 38-48 cm. Os machos têm plumagem castanho-avermelhada rica com cabeça e pescote mais escuros; as fêmeas são malhadas castanho. Alimenta-se de invertebrados aquáticos, sementes e algas. Realiza movimentos nomádicos em resposta a condições de seca. Classificado como Pouco Preocupante pela UICN.
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.