Yellow-billed Duck vs African Pygmy-goose
Anas undulata comparado con Nettapus auritus
Side-by-Side Comparison
| Atributo | Yellow-billed Duck | African Pygmy-goose |
|---|---|---|
| Nombre científico | Anas undulata | Nettapus auritus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 48,1 cm (18.9 in) | 29,9 cm (11.8 in) |
| Peso | 907,6666666666666 g (32.02 oz) | 272,5 g (9.61 oz) |
| Dieta | Dives for fish, frogs, and aquatic invertebrates; uses serrated bill to grip prey; diet shifts … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Tamaño de la puesta | 4-12 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Yellow-billed Duck
Freshwater lakes, rivers, marshes, and dams across eastern and southern Africa from Ethiopia and Uganda south to the Cape. Tolerates agricultural impoundments and urban wetlands. Largely sedentary.
African Pygmy-goose
Freshwater lakes, ponds, and rivers with floating water lilies and other aquatic vegetation across sub-Saharan Africa from Senegal to Tanzania. Nests in tree cavities near water. Highly dependent on water lily vegetation.
Song & Call Comparison
Yellow-billed Duck
Female gives a loud, descending quacking series; male utters a soft, raspy rehb note. The female's strong quacking call is the dominant sound at sub-Saharan African wetlands.
African Pygmy-goose
Male produces a soft, wheezy whistle; female gives a quiet, duck-like quack. Pairs exchange rapid twittering notes during courtship on lily-covered African pools.
Geographic Range & Migration
Yellow-billed Duck
Found across sub-Saharan Africa from Senegal to Ethiopia and south to South Africa. Sedentary in freshwater wetlands.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Estado de conservación
Yellow-billed Duck
African Pygmy-goose
How to Tell Them Apart
Yellow-billed Duck
Brown body with scaly pale-edged feathers; head brown with paler face and throat. Diagnostic bright yellow bill with black central stripe. Iridescent green-and-black speculum with white borders. Sexes similar.
African Pygmy-goose
Tiny. Males have glossy dark green head with orange facial patch and ear spot; chestnut-orange flanks; white underparts; black and green back. Females duller with dark eye-stripe. Small yellow-green bill.
About These Birds
Yellow-billed Duck
El pato de pico amarillo es un pato de tamaño mediano con plumaje marrón oscuro moteado y un pico amarillo con una dorsal negra, lo que le da su nombre común. Está ampliamente distribuido en África subsahariana, donde habita en una variedad de humedales, incluyendo lagos, ríos, marismas y embalses. Es una especie común y adaptable que tolera bien la alteración humana de su hábitat.
African Pygmy-goose
El pigmeo africano o pato enano africano es el pato más pequeño de África y uno de los patos más pequeños del mundo. Tiene plumaje de color verde oscuro y blanco con el cuello de color castaño rojizo. Habita en lagunas tranquilas, estanques y pantanos con abundante vegetación flotante, especialmente lirios de agua, en África subsahariana.