Smew vs African Pygmy-goose
Mergellus albellus comparado con Nettapus auritus
Side-by-Side Comparison
| Atributo | Smew | African Pygmy-goose |
|---|---|---|
| Nombre científico | Mergellus albellus | Nettapus auritus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 37,5 cm (14.8 in) | 29,9 cm (11.8 in) |
| Peso | 658,75 g (23.24 oz) | 272,5 g (9.61 oz) |
| Dieta | Dives for small fish, aquatic insects, and crustaceans in freshwater and coastal habitats. Uses serrated … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Tamaño de la puesta | 5-11 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Smew only
African Pygmy-goose only
Ninguno
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
Smew
Male gives a soft, crow-like krr note; female produces a grating, rasping call. Both sexes are relatively quiet; the male's harsh, crow-like call is surprisingly low for such a small …
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
Smew
Breeds in boreal forests of northern Europe and Siberia. Winters on large lakes and coasts from western Europe east to Japan and China.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Estado de conservación
Smew
African Pygmy-goose
How to Tell Them Apart
Smew
Male is largely white with black eye patch, black lines on back, and fine black lines on flanks creating a cracked-ice pattern. Female has chestnut-red head, white cheeks, and grey …
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
Smew
La serreta chica o smew es el más pequeño y quizás el más hermoso de los mergansos. El macho en plumaje nupcial es casi enteramente blanco con finas líneas negras y parches negros en la cara. La hembra tiene la cabeza castaña con las mejillas blancas y el cuerpo gris. Cría en bosques boreales de Europa y Asia, y pasa el invierno en lagos y ríos de Europa occidental.
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.