Mallard vs Siberian Scoter

Anas platyrhynchos compared with Melanitta stejnegeri

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Side-by-Side Comparison

Attribute Mallard Siberian Scoter
Scientific Name Anas platyrhynchos Melanitta stejnegeri
Order Anseriformes Anseriformes
Family Anatidae Anatidae
Conservation Status Least Concern Least Concern
Length 58.0 cm (22.8 in)
Wingspan 90.0 cm (35.4 in) 53.4 cm (21.0 in)
Weight 1100.0 g (38.80 oz) 1267.5 g (44.71 oz)
Diet Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … Dives for bivalves, crustaceans, and aquatic invertebrates in coastal East Asian waters. Diet similar to …
Clutch Size 4-18 6-9
Population Trend
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Size Comparison

Body Length
Mallard 58.0 cm
Siberian Scoter
Wingspan
Mallard 90.0 cm
Siberian Scoter 53.4 cm
Weight
Mallard 1100.0 g
Siberian Scoter 1267.5 g
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Habitat Comparison

Shared Habitats

Mallard only

Siberian Scoter only

Mallard

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

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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.

Siberian Scoter

Song

Male emits a soft, piping whistle; female produces a guttural, grating call. Voice resembles White-winged Scoter; heard during winter on East Asian coasts and large inland seas.

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Geographic Range & Migration

Mallard

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

Siberian Scoter

Breeds in boreal forests and tundra of central and eastern Siberia. Winters along the coasts of Japan, Korea, and northeastern China.

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Conservation Status

Least Concern

Mallard

Least Concern

Siberian Scoter

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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

Siberian Scoter

Plumage

Male is uniformly black with white secondaries forming wing patch; orange-yellow bill has large black knob at base and pale yellow tip. Female dark brown with paler facial patches and …

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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.

Siberian Scoter

A medium-large sea duck (~1.3 kg) of family Anatidae, closely related to White-winged Scoter and endemic to eastern Siberia and northeastern Asia. Breeds near boreal lakes and winters in coastal seas of East Asia. Feeds by diving for benthic mollusks and crustaceans. Least Concern; recently split from White-winged Scoter as a distinct species.

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Related Comparisons

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