Blue-billed Teal vs White-backed Duck
Spatula hottentota comparado con Thalassornis leuconotus
Side-by-Side Comparison
| Atributo | Blue-billed Teal | White-backed Duck |
|---|---|---|
| Nombre científico | Spatula hottentota | Thalassornis leuconotus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 29,4 cm (11.6 in) | 33,3 cm (13.1 in) |
| Peso | 269,2 g (9.50 oz) | 704,6666666666666 g (24.86 oz) |
| Dieta | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … | Eats aquatic plants, grasses, and seeds; large tropical swan grazing on lake margins and floating … |
| Tamaño de la puesta | 5-12 | 4-10 |
| 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.
White-backed Duck
Freshwater lakes, ponds, and swamps with abundant floating aquatic vegetation, especially water lilies, in sub-Saharan Africa and Madagascar. Prefers shallow sheltered water with emergent vegetation for cover.
Song & Call Comparison
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.
White-backed Duck
Soft, low whistles and hissing sounds. The White-backed Duck is relatively quiet compared to whistling-ducks. Alarm call is a low 'peep'. Mostly heard at night.
Geographic Range & Migration
Blue-billed Teal
Breeds in Arctic and subarctic Eurasia; winters at sea in the North Atlantic and from western Europe to eastern Africa.
White-backed Duck
Breeds in subarctic Canada; winters along the Atlantic coast from New England to Florida and on the Gulf Coast.
Estado de conservación
Blue-billed Teal
White-backed Duck
How to Tell Them Apart
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.
White-backed Duck
Heavily mottled and barred brown and buff overall. Diagnostic white back patch visible in flight. Head brown with whitish face and chin. Stiff tail held erect. Sexes similar; stiff-tail diving …
About These Birds
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.
White-backed Duck
El pato blanquinegro es un pato de cola tiesa africano con un plumaje críptico de color marrón oscuro moteado de blanco. Se distingue por su cabeza de color caqui y el cuello barreado. Habita en pantanos con vegetación densa y lagnas con abundante vegetación flotante en África subsahariana y Madagascar. Está clasificado como casi amenazado.