Northern Pintail vs Spotted Whistling-duck
Anas acuta comparado com Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Northern Pintail | Spotted Whistling-duck |
|---|---|---|
| Nome científico | Anas acuta | Dendrocygna guttata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 51,3 cm (20.2 in) | 41,3 cm (16.3 in) |
| Peso | 912,75 g (32.20 oz) | 677,5 g (23.90 oz) |
| Dieta | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow water; diet dominated by hard-shelled benthic … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamanho da postura | 3-12 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Northern Pintail only
Nenhum
Spotted Whistling-duck only
Nenhum
Northern Pintail
Breeds on shallow prairie wetlands, tundra ponds, and arctic meadows. Winters on coastal estuaries, lagoons, rice paddies, and agricultural fields across Europe, Asia, Africa, and North America. Highly migratory.
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
Northern Pintail
Male produces a low, mellow whistle; female gives a hoarse, nasal quack. The male's soft, flute-like call is one of the most distinctive sounds of northern wetlands in spring.
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
Northern Pintail
Breeds in Arctic Canada, Alaska, and Greenland; winters along the coasts of the North Atlantic from Labrador to West Africa.
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
Northern Pintail
Spotted Whistling-duck
How to Tell Them Apart
Northern Pintail
Breeding males have chocolate-brown head; white neck stripe extending to breast; gray flanks with long pointed central tail feathers. Females mottled brown with pointed tail and gray bill. Elegant and …
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
Northern Pintail
Um pato esbelto e elegante da família Anatidae, amplamente distribuído no Hemisfério Norte. O Arrabio (Anas acuta) nidifica em prados e pradarias abertas do Ártico e da América do Norte e Eurásia, migrando para o sul durante o inverno. Mede aproximadamente 51-76 cm, com machos maiores que fêmeas. Os machos têm cabeça marrom chocolatada com listra branca no pescoço e longa cauda pontiaguda preta. As fêmeas são discretamente malhadas. Alimenta-se de sementes aquáticas, vegetação e invertebrados. Um dos patos migratórios …
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.