African Pygmy-goose vs Blue-billed Duck
Nettapus auritus comparado con Oxyura australis
Side-by-Side Comparison
| Atributo | African Pygmy-goose | Blue-billed Duck |
|---|---|---|
| Nombre científico | Nettapus auritus | Oxyura australis |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 29,9 cm (11.8 in) | 30,8 cm (12.1 in) |
| Peso | 272,5 g (9.61 oz) | 837,75 g (29.55 oz) |
| Dieta | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … | Dives for aquatic invertebrates, seeds, and plant material in Australian freshwater lakes and swamps. Highly … |
| Tamaño de la puesta | 6-12 | 5-6 |
| Population Trend | — | — |
Habitat Comparison
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
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.
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.
Geographic Range & Migration
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Blue-billed Duck
Resident in southwestern and southeastern Australia. Found on freshwater swamps and lakes, avoiding arid and tropical regions.
Estado de conservación
African Pygmy-goose
Blue-billed Duck
How to Tell Them Apart
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.
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 …
About These Birds
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.
Blue-billed Duck
El pato de cola azul australiano es un pato de cola tiesa endémico de Australia y Tasmania. El macho tiene el pico azul brillante, la cabeza negra y el cuerpo castaño rojizo. La hembra es de color marrón oscuro. Habita en pantanos de agua dulce profunda con vegetación emergente densa. Está clasificado como vulnerable, afectado por la pérdida de humedales.