Blue-billed Duck vs Blue-billed Teal
Oxyura australis comparado com Spatula hottentota
Side-by-Side Comparison
| Atributo | Blue-billed Duck | Blue-billed Teal |
|---|---|---|
| Nome científico | Oxyura australis | Spatula hottentota |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 30,8 cm (12.1 in) | 29,4 cm (11.6 in) |
| Peso | 837,75 g (29.55 oz) | 269,2 g (9.50 oz) |
| Dieta | Dives for aquatic invertebrates, seeds, and plant material in Australian freshwater lakes and swamps. Highly … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| Tamanho da postura | 5-6 | 5-12 |
| Population Trend | — | — |
Habitat Comparison
Blue-billed Teal
Freshwater lakes, marshes, pans, and flooded grasslands across sub-Saharan Africa from Senegal and Sudan south to the Cape. Nomadic; follows seasonal rains. Common but easily overlooked among reed beds.
Song & Call Comparison
Blue-billed Duck
Male produces a mechanical, splashing display call with loud bill-drumming; female gives a harsh quack. The male's bizarre bubbling-cum-drumming display is spectacular on Australian lakes.
Blue-billed Teal
Male utters a soft, teal-like peep; female gives a muted quack. Pairs call quietly in dense papyrus; soft contact calls help birds maintain proximity in thick African marsh vegetation.
Geographic Range & Migration
Blue-billed Duck
Resident in southwestern and southeastern Australia. Found on freshwater swamps and lakes, avoiding arid and tropical regions.
Blue-billed Teal
Breeds in Arctic and subarctic Eurasia; winters at sea in the North Atlantic and from western Europe to eastern Africa.
Estado de conservação
Blue-billed Duck
Blue-billed Teal
How to Tell Them Apart
Blue-billed Duck
Breeding male is deep rich chestnut with black head and broad bright blue bill; tail often held erect. Female is dark brown with finely barred buff pattern on body and …
Blue-billed Teal
Small; males have pale blue-gray bill contrasting with brown-gray body. Head finely spotted; underparts barred brown and white. Males show powder-blue forewing in flight. Females browner. African marsh species.
About These Birds
Blue-billed Duck
O pato-azul australiano é um pequeno pato de cauda rígida endémico do sul e este da Austrália. Os machos têm cabeça preta escura, bico azul brilhante e corpo castanho-avermelhado. Habita lagos e pântanos de água doce com vegetação emergente densa. É um mergulhador talentoso e move-se com dificuldade em terra. É considerado vulnerável em algumas partes do seu alcance devido à perda de habitat. A qualidade e disponibilidade das zonas húmidas são críticas para a sua sobrevivência.
Blue-billed Teal
A small dark teal with blue-grey bill and legs, brown-streaked plumage, and fine pale spotting on the flanks. The most widespread teal in sub-Saharan Africa. Found on freshwater lakes and marshes. Highly nomadic; follows seasonal rainfall. Swims low in the water like a pochard.