American Black Duck vs Lesser Whistling-duck

Anas rubripes compared with Dendrocygna javanica

Side-by-Side Comparison

Attribute American Black Duck Lesser Whistling-duck
Scientific Name Anas rubripes Dendrocygna javanica
Order Anseriformes Anseriformes
Family Anatidae Anatidae
Conservation Status Least Concern Least Concern
Length
Wingspan 53.4 cm (21.0 in) 38.8 cm (15.3 in)
Weight 1211.25 g (42.73 oz) 525.0 g (18.52 oz)
Diet -- --
Clutch Size 1-17 7-17
Population Trend

Habitat Comparison

Shared Habitats

American Black Duck only

Lesser Whistling-duck 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 Whistling-duck

Freshwater wetlands, lakes, rice paddies, mangroves, and slow rivers across South and Southeast Asia from India through southern China to Borneo and Indonesia. Common near cultivated land and human settlements.

Song & Call Comparison

American Black Duck

Song

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 Whistling-duck

Song

A softer, higher-pitched whistle than other Dendrocygna. Call is a quick 'we-we' given in flight. Smaller size reflected in higher-pitched and thinner quality of call.

Conservation Status

Least Concern

American Black Duck

Least Concern

Lesser Whistling-duck

How to Tell Them Apart

American Black Duck

Plumage

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 Whistling-duck

Plumage

Warm chestnut-brown overall; head and neck brown; upperparts dark brown. Chestnut rump and upper-tail conspicuous in flight. Flanks chestnut with pale streaks. Bill and legs dark gray. Sexes similar.

About These Birds

American Black Duck

A large dark brown dabbling duck closely resembling a very dark female Mallard, with purple speculum, yellowish-olive bill in males, and orange legs. Common in eastern North America. Hybridizes freely with Mallard; pure populations declining in the interior.

Lesser Whistling-duck

A small warm brown whistling-duck with chestnut upper-tail coverts, a pale face, and dark brown cap. The most widespread and common whistling-duck in Asia. Found in freshwater wetlands from the Indian subcontinent to Southeast Asia. Nests in holes in trees and sometimes in thatched roofs.

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