Mallard vs Marbled Duck

Anas platyrhynchos compared with Marmaronetta angustirostris

Side-by-Side Comparison

Attribute Mallard Marbled Duck
Scientific Name Anas platyrhynchos Marmaronetta angustirostris
Order Anseriformes Anseriformes
Family Anatidae Anatidae
Conservation Status Least Concern Near Threatened
Length 58.0 cm (22.8 in)
Wingspan 90.0 cm (35.4 in) 40.1 cm (15.8 in)
Weight 1100.0 g (38.80 oz) 422.5 g (14.90 oz)
Diet Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … --
Clutch Size 4-18 5-20
Population Trend

Size Comparison

Body Length
Mallard 58.0 cm
Marbled Duck
Wingspan
Mallard 90.0 cm
Marbled Duck 40.1 cm
Weight
Mallard 1100.0 g
Marbled Duck 422.5 g

Habitat Comparison

Shared Habitats

Mallard only

Marbled Duck only

None

Mallard

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

Marbled Duck

Shallow densely vegetated freshwater and brackish marshes, rice paddies, and lagoons in the Mediterranean basin, Middle East, and Central Asia. Winters in Africa and South Asia. Dependent on emergent wetland vegetation.

Song & Call Comparison

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.

Marbled Duck

Song

Male gives a low, guttural chuckling; female produces a nasal, rattling quack. Calls are relatively quiet for a duck; the chuckling male call is unusual among Eurasian and North African …

Geographic Range & Migration

Mallard

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

Marbled Duck

Conservation Status

Least Concern

Mallard

Near Threatened

Marbled Duck

How to Tell Them Apart

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

Marbled Duck

Plumage

Pale sandy-buff plumage with bold white spots throughout; distinctive marbled pattern. Dark eye patch forming mask. Pale face and throat. No iridescent speculum. Gray bill; gray legs. Sexes similar. Mediterranean …

About These Birds

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.

Marbled Duck

A pale sandy-buff duck with distinctive marbled dark and light brown spotting on body and wings, a dark eyepatch, and pale bill. Found in Mediterranean scrub-wetlands and Middle Eastern marshes. Migratory; breeds in southern Europe and central Asia, winters in sub-Saharan Africa and South Asia.

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