Surf Scoter vs African Pygmy-goose
Melanitta perspicillata comparado con Nettapus auritus
Side-by-Side Comparison
| Atributo | Surf Scoter | African Pygmy-goose |
|---|---|---|
| Nombre científico | Melanitta perspicillata | Nettapus auritus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 45,3 cm (17.8 in) | 29,9 cm (11.8 in) |
| Peso | 1019,75 g (35.97 oz) | 272,5 g (9.61 oz) |
| Dieta | Dives for molluscs, crustaceans, and herring spawn in coastal waters. Uses its distinctive swollen bill … | Filter-feeds on invertebrates and seeds; dabbles in shallow ponds; diet more plant-based outside spring breeding … |
| Tamaño de la puesta | 5-9 | 6-12 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Surf Scoter 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
Surf Scoter
Male produces a low, gurgling burble; female gives a crow-like, guttural cawing. The female's rasping, crow-like call is startling; males make soft, liquid gurgling notes during courtship.
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
Surf Scoter
Breeds in boreal forests and tundra of northern North America. Winters along Pacific and Atlantic coasts south to Baja California and the Carolinas.
African Pygmy-goose
Breeds across temperate to sub-Arctic Eurasia; winters in Africa, South Asia, and Southeast Asia.
Estado de conservación
Surf Scoter
African Pygmy-goose
How to Tell Them Apart
Surf Scoter
Male is entirely glossy black except for white patches on forehead and nape; bill tricolored orange, red, and white with black spot. Female sooty-brown with two white facial patches.
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
Surf Scoter
El negrón careto es un pato marino de América del Norte en el que el macho es enteramente negro excepto por un parche blanco en la nuca y manchas blancas a ambos lados del pico multicolor. Cría en lagos interiores y estanques de bosques boreales y tundra, e inverna en costas marinas. Su hábitat marino es el océano Atlántico y el Pacífico.
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.