Ruddy Duck vs Blue-billed Teal
Oxyura jamaicensis comparado con Spatula hottentota
Side-by-Side Comparison
| Atributo | Ruddy Duck | Blue-billed Teal |
|---|---|---|
| Nombre científico | Oxyura jamaicensis | Spatula hottentota |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 27,9 cm (11.0 in) | 29,4 cm (11.6 in) |
| Peso | 586,6666666666666 g (20.69 oz) | 269,2 g (9.50 oz) |
| Dieta | Dives for aquatic plant seeds, roots, and invertebrates in freshwater marshes. Uses stiff tail as … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| Tamaño de la puesta | 5-15 | 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
Ruddy Duck
Male produces a mechanical, drumming bok-bok-bok staccato beat; female gives a harsh, nasal quack. The male's rapid drum-roll call on the bill during display is startlingly loud and distinctive.
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
Ruddy Duck
Breeds across interior North America from western Canada south to Mexico. Winters on coasts and inland waters south to northern South America.
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 conservación
Ruddy Duck
Blue-billed Teal
How to Tell Them Apart
Ruddy Duck
Breeding male has vivid rufous-chestnut body, black crown, white cheeks, and bright sky-blue bill; stiff tail often cocked upright. Female is dull brown with pale cheek crossed by single dark …
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
Ruddy Duck
El pato malvasía norteamericano es un pato de cola tiesa con el macho de cabeza negra y mejillas blancas y el cuerpo de color castaño rojizo. Es originario de América del Norte y el Caribe, pero fue introducido accidentalmente en Europa donde la hibridación con la malvasía amenaza la supervivencia de esta especie en peligro de extinción. En vuelo, el aleteo rápido produce un zumbido audible.
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.