Black Scoter vs Blue-billed Teal
Melanitta americana comparado con Spatula hottentota
Side-by-Side Comparison
| Atributo | Black Scoter | Blue-billed Teal |
|---|---|---|
| Nombre científico | Melanitta americana | Spatula hottentota |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Near Threatened | Least Concern |
| Longitud | — | — |
| Envergadura | 44,0 cm (17.3 in) | 29,4 cm (11.6 in) |
| Peso | 1046,1 g (36.90 oz) | 269,2 g (9.50 oz) |
| Dieta | Dives for molluscs, particularly mussels and clams, in coastal waters. Takes aquatic insects and plant … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| Tamaño de la puesta | 5-11 | 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
Black Scoter
Male produces a low, melodious whistle; female gives a harsh, grating call. Closely related to Common Scoter; voice very similar; heard on North American Pacific and Atlantic coasts in winter.
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
Black Scoter
Breeds in boreal forests and tundra of Alaska and northern Canada. Winters along Pacific and Atlantic coasts south to Baja California and Florida.
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
Black Scoter
Blue-billed Teal
How to Tell Them Apart
Black Scoter
Male is pure glossy black throughout with a prominent bright orange-yellow knob at bill base. Female is dark sooty-brown with pale buff cheeks and foreneck contrasting with darker cap and …
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
Black Scoter
El negrón americano es el homólogo americano del negrón común, del que se diferencia por el color del pico del macho, con un pronunciado gálbulo amarillo-naranja. Cría en la tundra y los bosques boreales de Norteamérica e inverna en las costas del Atlántico y del Pacífico de Estados Unidos. Es relativamente común en sus cuarteles de invierno donde puede verse en grandes bandadas.
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.