Spotted Whistling-duck vs Mallard

Dendrocygna guttata compared with Anas platyrhynchos

Side-by-Side Comparison

Attribute Spotted Whistling-duck Mallard
Scientific Name Dendrocygna guttata Anas platyrhynchos
Order Anseriformes Anseriformes
Family Anatidae Anatidae
Conservation Status Least Concern Least Concern
Length 58.0 cm (22.8 in)
Wingspan 41.3 cm (16.3 in) 90.0 cm (35.4 in)
Weight 677.5 g (23.90 oz) 1100.0 g (38.80 oz)
Diet -- Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing …
Clutch Size 10-11 4-18
Population Trend

Size Comparison

Body Length
Spotted Whistling-duck
Mallard 58.0 cm
Wingspan
Spotted Whistling-duck 41.3 cm
Mallard 90.0 cm
Weight
Spotted Whistling-duck 677.5 g
Mallard 1100.0 g

Habitat Comparison

Shared Habitats

Spotted Whistling-duck only

Mallard only

None

Spotted Whistling-duck

Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.

Mallard

Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.

Song & Call Comparison

Spotted Whistling-duck

Song

A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.

Mallard

Song

Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.

Geographic Range & Migration

Spotted Whistling-duck

Mallard

Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.

Conservation Status

Least Concern

Spotted Whistling-duck

Least Concern

Mallard

How to Tell Them Apart

Spotted Whistling-duck

Plumage

Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.

Mallard

Plumage

Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.

Bill

Broad, flat bill — yellow-green in males, orange-brown in females

About These Birds

Spotted Whistling-duck

A small dark brown whistling-duck with bold white spots on its flanks, orange-red bill and legs, and a pale face. Found in tropical wetlands of New Guinea, the Philippines, and Indonesia. Often found near freshwater streams and flooded grassland. Less gregarious than other whistling-ducks.

Mallard

The mallard is the ancestor of most domestic duck breeds and the most abundant and widespread dabbling duck in the world. Males perform elaborate courtship displays including head-bobbing and whistle-grunt calls. Mallards are highly adaptable, thriving in both wilderness and urban environments.

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