American Black Duck vs Bufflehead
Anas rubripes comparado con Bucephala albeola
Side-by-Side Comparison
| Atributo | American Black Duck | Bufflehead |
|---|---|---|
| Nombre científico | Anas rubripes | Bucephala albeola |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 32,2 cm (12.7 in) |
| Peso | 1211,25 g (42.73 oz) | 400,5 g (14.13 oz) |
| Dieta | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Dives for aquatic insects, crustaceans, and small molluscs in freshwater and coastal habitats. One of … |
| Tamaño de la puesta | 1-17 | 5-14 |
| Population Trend | — | — |
Habitat Comparison
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
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.
Bufflehead
Male produces a soft, squeaky whistle; female gives a harsh, nasal quack. The male's thin, reedy whistle is barely audible; pairs exchange quiet contact calls at boreal forest ponds.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
Bufflehead
Breeds in boreal forest of western and central North America. Winters along both coasts and interior lakes from southern Canada south to Mexico.
Estado de conservación
American Black Duck
Bufflehead
How to Tell Them Apart
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 …
Bufflehead
Male has iridescent green-purple head with a large triangular white patch from behind eye over crown; body clean white except for black back. Female is dark sooty-brown with a single …
About These Birds
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.
Bufflehead
El pato bufón o porrón albeola es el pato buceador más pequeño de América del Norte. El macho tiene un llamativo parche blanco en la nuca de la cabeza negro-verde iridiscente. Cría en cavidades de árboles cerca de lagos y estanques boscosos en Norteamérica, siendo uno de los pocos patos que anidan en huecos de árboles. Inverna principalmente en costas marinas.