Mallard vs Pink-headed Duck

Anas platyrhynchos compared with Rhodonessa caryophyllacea

Side-by-Side Comparison

Attribute Mallard Pink-headed Duck
Scientific Name Anas platyrhynchos Rhodonessa caryophyllacea
Order Anseriformes Anseriformes
Family Anatidae Anatidae
Conservation Status Least Concern Critically Endangered
Length 58.0 cm (22.8 in)
Wingspan 90.0 cm (35.4 in) 50.2 cm (19.8 in)
Weight 1100.0 g (38.80 oz) 963.8 g (34.00 oz)
Diet Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … --
Clutch Size 4-18 5-10
Population Trend

Size Comparison

Body Length
Mallard 58.0 cm
Pink-headed Duck
Wingspan
Mallard 90.0 cm
Pink-headed Duck 50.2 cm
Weight
Mallard 1100.0 g
Pink-headed Duck 963.8 g

Habitat Comparison

Shared Habitats

Mallard only

Pink-headed Duck only

Mallard

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

Pink-headed Duck

Historically inhabited secluded freshwater pools, lakes, and marshes in tall grass and forest in the Ganges and Brahmaputra plains of India, Nepal, and Myanmar. Now possibly extinct or extremely rare.

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.

Pink-headed Duck

Song

Critically Endangered; likely gives a soft, resonant quacking note judging from close relatives. The Pink-headed Duck may have produced a distinctive, mellow whistle unlike other pochards.

Geographic Range & Migration

Mallard

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

Pink-headed Duck

Conservation Status

Least Concern

Mallard

Critically Endangered

Pink-headed 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

Pink-headed Duck

Plumage

Unmistakable; males have strikingly bright pink head and neck contrasting with dark chocolate-brown body and wings. Pink bill. Females have paler pink head. Possibly extinct; last confirmed 1949. Critically endangered …

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.

Pink-headed Duck

Possibly extinct; a distinctive large diving duck formerly found in the Ganges plains of India and Myanmar. Males had a deep pink head and neck contrasting with dark chocolate-brown body. Last confirmed sightings in the 1940s. One of Asia's greatest bird mysteries.

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