American Black Duck vs Lesser White-fronted Goose
Anas rubripes comparado con Anser erythropus
Side-by-Side Comparison
| Atributo | American Black Duck | Lesser White-fronted Goose |
|---|---|---|
| Nombre científico | Anas rubripes | Anser erythropus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Vulnerable |
| Longitud | — | — |
| Envergadura | 53,4 cm (21.0 in) | 73,8 cm (29.1 in) |
| Peso | 1211,25 g (42.73 oz) | 1912,5 g (67.46 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 1-17 | 2-8 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
American Black Duck only
Lesser White-fronted Goose only
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.
Lesser White-fronted Goose
Breeds on low-arctic and subarctic willow scrub and tundra across northern Eurasia. Winters on agricultural steppes and wetlands in Azerbaijan, Iran, Greece, and eastern Asia. Mixes with White-fronted Goose flocks.
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.
Lesser White-fronted Goose
A high-pitched, rapid 'yelp' — noticeably faster and higher than Greater White-fronted. VU status; its smaller size is reflected in higher-frequency calls.
Estado de conservación
American Black Duck
Lesser White-fronted Goose
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 …
Lesser White-fronted Goose
Similar to but smaller than Greater White-fronted Goose; more extensive white forehead reaching above eyes. Distinctive yellow eye-ring. Dark brown-gray body with black belly bars. Pink bill; orange legs.
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.
Lesser White-fronted Goose
El ánsar chico o ganso careto chico es el más pequeño de los gansos árticos y está en peligro de extinción. Tiene el mismo patrón que el ánsar careto pero más pequeño, con un anillo ocular amarillo llamativo. Cría en la tundra del norte de Eurasia y migra al sur para pasar el invierno. Su población ha declinado drásticamente en las últimas décadas por la caza excesiva y la pérdida de hábitat.