Red-billed Teal vs American Black Duck
Anas erythrorhyncha comparado con Anas rubripes
Side-by-Side Comparison
| Atributo | Red-billed Teal | American Black Duck |
|---|---|---|
| Nombre científico | Anas erythrorhyncha | Anas rubripes |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 43,0 cm (16.9 in) | 53,4 cm (21.0 in) |
| Peso | 648,0 g (22.86 oz) | 1211,25 g (42.73 oz) |
| Dieta | Dives for molluscs, crustaceans, and small fish in coastal and freshwater habitats; diet shifts with … | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … |
| Tamaño de la puesta | 5-13 | 1-17 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Red-billed Teal only
Ninguno
American Black Duck only
Red-billed Teal
Freshwater lakes, marshes, pans, and flooded fields across sub-Saharan Africa from Ethiopia and Sudan south to the Cape. Nomadic; follows seasonal flooding. Very tolerant of saline conditions.
American Black Duck
Freshwater and brackish wetlands in eastern North America from Atlantic Canada south along the coast to Georgia. Breeds in northern bogs and wetlands. Winters on coastal marshes, estuaries, and freshwater lakes.
Song & Call Comparison
Red-billed Teal
Female produces a loud, nasal quacking series; male gives a soft, nasal grunt. Both sexes call with emphatic, honking quacks that carry across African open wetlands and dams.
American Black Duck
Female produces a loud, deep quacking series; male gives a low, raspy grunt. Voice is deeper and huskier than a Mallard; pairs call powerfully across northeastern North American wetlands.
Geographic Range & Migration
Red-billed Teal
Breeds in northern Eurasia and Arctic Canada; winters on open ocean in the North Atlantic and North Pacific.
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Estado de conservación
Red-billed Teal
American Black Duck
How to Tell Them Apart
Red-billed Teal
Diagnostic bright pink-red bill with dark ridge contrasting with dark brown cap. Body brown, finely scalloped. White sides of face. Pale buff-white speculum with dark border. Sexes similar. Sub-Saharan Africa.
American Black Duck
Sooty dark brown body; head and neck paler buff with dark streaking. Iridescent purple speculum without white border. Males have yellow-green bill; females olive with orange blotches. Silvery underwings in …
About These Birds
Red-billed Teal
El ánade piquirrojo es un pato de tamaño mediano con plumaje marrón moteado y un llamativo pico rojo que contrasta con la capucha oscura de la cabeza. Es endémico de África subsahariana y Madagascar, donde habita en una gran variedad de humedales de agua dulce. Es un pato muy común en su área de distribución y suele encontrarse en bandadas numerosas.
American Black Duck
El pato negro americano es un gran pato de color marrón muy oscuro con una cabeza más clara y un llamativo espéculo alar púrpura. Habita en humedales del este de Norteamérica y se está hibridando cada vez más con el pato de collar introducido en su rango, lo que representa una amenaza para su pureza genética. Prefiere marismas costeras, pantanos boscosos y lagos tranquilos.